William Herbert 'Bill' Grace

A tribute to my father and my mother Clarice

Bill and Clarice Grace
Photo taken at a Taplow Masonic Lodge Ladies' Night in the fifties


My father, William  Grace, was born on 11th February 1903 in Tottenham, North London - some ten months before the Wright brothers first flew.

In 1910, A V Roe was flying his AVRO Triplane over Tottenham marshes, having been evicted from Brooklands by the Clerk of the Course.
Bill watched from below - the sight making a deep impression on the 7-year old boy.

Alliot Verdon-Roe at the controls of one of the first triplanes he built.

Young William's father was a third generation cordwainer - a master bootmaker and went to France with the Cavalry
as a leather worker and saddler.  He was seriously injured and returned to England, but was unable to work again.
He eventually died of his injuries.  With three younger sisters and a mother to support, Bill was forced to leave school and go out
to work as the family breadwinner.  At the age of 13, he pushed a milk cart around the streets of London
in the early hours of the morning delivering milk.  In time, he progressed through a variety of jobs,
among them working on trams at a local terminus.

In 1920, he heard that there were jobs to be had at a nearby airfield where a new aircraft company was being established.
This was the de Havilland Aircraft Company being established by Geoffrey de Havilland at Stag Lane, Hendon, North London.
Bill was taken on as a young apprentice.

Bill Grace's wooden tool box - an apprentice piece made by him at Stag Lane from aircraft spruce, ply,
brass screws and alloy aircraft one-inch washers.  Now a precious family heirloom.

Bill Grace with two of his younger sisters (Edna left, Dorothy right) - 1931

In the early post-war years, orders were scarce and times were hard for the fledgling company.
On Friday lunchtimes, the managers would sometimes take aircraft grade spruce and other materials and sell them at the local
market for whatever they could get for them in order to make up the wage packets on Friday night.  But by the late twenties,
the Moth had transformed all of that, and the heyday of private aviation was in full swing.  Records fell to Moths and many famous pilots
were to be seen at Stag Lane.  The company developed its first engine - the Gipsy 1, and in 1927, Bill worked on the first pair of these
engines on the bench.  These two engines went into the two diminutive DH71 Tiger Moth monoplane experimental aircraft.
Bill remembered preparing and polishing aircraft for the annual Kings Cup Races each year.

Bill Grace's BTH magneto spanner (BTH magnetos were fitted to DH Gipsy engines) and his step gauge,
engraved with a very early DH logo, also seen on the covers of the DH Gazettes of 1926 below.

In 1926, the de Havilland Aircraft Company began publishing its own house magazine - the DH Gazette.
Here are the first four issues.

The above photo and the two following photos tell the story of the rise and fall of Stag Lane aerodrome.
Above is Stag Lane around 1926, when the first Gazettes above were published.  G-EBPR and G-EBRY are early DH60 Moths.
G-EBGT is a Jupiter-engined DH9C.  Note the open countryside and the houses just visible at the top of the image.  High resolution image here.

Stag Lane in its heyday in the early thirties, just before closure.  Compare with the previous image.  In a few years, the factory had
expanded considerably, but so had suburbia, which was to precipitate the closure of the airfield in 1934,
with producton and flight operations being relocated to Hatfield.  High resolution image here.

By 1934, the company was booming and the Moth and other types were being exported worldwide.  But the airfield at Stag Lane was
being encroached upon by the spreading London suburban sprawl.  In 1930, the company purchased land a few miles
north at Hatfield and established a new airfield.  The factory was transferred there in 1934, with just the engine operation remaining
in the workshops at Stag Lane.

Stag Lane not long after the airfield closed in 1934.  Houses are competely engulfing the airfield, but the factory remained
as the DH engine works.  High resolution image here.

Bill moved to Hatfied with the new operation.  On Saturday 1st December 1934, after a busy year, the company held its
annual dinner in the Warncliffe Rooms in London.

Bill attended the DH annual dinner in 1934 and had his commemorative menu autographed by 'GdeH' (Geoffrey de Havilland),
Owen Cathcart-Jones, James Mollison (rather scratchy - he liked his drink) and Amy Mollison.
Cathcart-Jones and the Mollisons had just returned from Australia where they had flown their Comets in the
McRobertson England to Australia race.  (The fifth autograph is that of Leonard Henry, the entertainer for the evening.)
The menu recorded numerous company achievements through the year in the form of newsreel frames,
including the 'great trek' from Stag Lane to Hatfield.
High resolution image here .

In the thirties, Bill had a friend of the same name in Imperial Airways.
He sent this photo of the DH86 Express G-ADFF 'Dione' that he was flying in the Middle East.

The reverse of the DH86 photo makes interesting reading

Among the mementos that Bill Grace kept for the rest of his life was this DH brochure, dated 1937.  Some selected pages are shown below.

Hatfield in the early thirties.  In the centre of the photo are the de Havilland School of Flying hangars and the clubhouse
and swimming pool of the London Aeroplane Club.  To the right, the first factory buildings are just going up.

When war was declared, DH decided that they could best contribute to the war effort with a wooden fighter/bomber based on the technology of the
DH88 Comet racer and the DH91 Albatross airliner.  That aircraft was the DH98 Mosquito.   Tiger Moth production was handed over to Morris Motors
at Cowley, Oxford to make way for Mosquito and other production at Hatfield.

At the outbreak of war, Bill applied to the RAF to become a pilot, but he was turned down because of the critical nature of his work at DH's.
Bill was at that time the Superintendent of Stores.  As such, all of the components and materials that went into aircraft production at hatfield passed through his hands.

29th September 1939 was National Registration Day.  The National Registration Bill was introduced to Parliament as an emergency measure at the start of the war
and Royal assent given on 5th September 1939.  65,000 enumerators across the country delivered forms ahead of the chosen day.
Householders were required to record details on the registration forms.  On the following Sunday and Monday the enumerators visited every householder,
checked the form and there and then issued a completed identity card for each of the residents.
Three main reasons for their introduction:
    1. The major dislocation of the population caused by mobilisation and mass evacuation and also the wartime need for complete manpower control and planning in order to maximise the efficiency of the war economy.
    2. The likelihood of rationing (introduced from January 1940 onwards).
    3. Population statistics. As the last census had been held in 1931, there was little accurate data on which to base vital planning decisions.

This is a page from the National Register, taken on 29th September 1939 and shows Bill Grace living at 62 Aldridge Avenue, Stanmore, a couple of miles northwest of Stag Lane aerodrome.
He is recorded with the occupation of 'Superintendent of Stores, aircraft' and living with his widowed mother Alice and his youger sister Marjorie who was a press operator and instrument maker.
Note that, at number 68, three doors down there were three families, two members of whom declared their occupation as 'Aircraft factory storekeeper, heavy'.
(Thanks to Roger de Mercado, Secretary of the de Havilland Aeronautical Technical School Association, for this page and the one below for Clarice Grace, née Usher.)

Bill Grace's copy of the British Standard B.S. 1100, Part 5, dated 1944.

Early in the war, Bill was taken seriously ill with a ruptured appendix and was admitted to the nearby Redhill County Hospital, Edgware
where he was placed on the critical list.  One of his intensive care nurses was a young nurse by the name of Clarice Usher.

Bill recovered - and married Clarice Usher in June 1942.

Bill and Clarice Grace were married in June 1942.

Another page from the National Register of 29th September 1939 for the residents of Redhill County Hospital, Burnt Oak, near Edgware.
Third from bottom is Hospital Staff Nurse Clarice Usher, whose name was over-written Grace upon her marriage to Bill in 1942.

Then, on the 3rd of October 1940, there was an air raid on de Havillands at Hatfield.

    Although the massed daylight raids were drawing down towards the end of the Battle of Britain, there continued to be sporadic activity during daylight hours by the Luftwaffe bomber force.
This was generally un-escorted, mostly conducted by singleton aircraft or very small groups, and often of little value militarily. One Luftwaffe aircraft, a Junkers 88 of Stab 1./KG 77,
was a lone raider whose attack had an unintended although successful outcome for the Luftwaffe.

    Trying to find Reading, the crew became lost in poor visibility and accidentally stumbled upon the de Havilland aircraft factory at Hatfield.  Here, the crew executed an accurate attack
that killed twenty-one factory workers, injured another seventy, and destroyed eighty per cent of the materials and work in progress for the new Mosquito bomber.

The Ju-88 attacked the airfield at low level, dropping four bombs at such low level that they skidded across the grass and concrete apron and lobbed up into the
94 shop which was crammed with workers and materials being gathered for the production of the first fifty production Mosquitos.
At the time, Bill Grace was Superintendent of Stores for de Havillands and was in charge of this assembly of parts and materials.
The damage was catastrophic.  26 of Bill's staff died and many more were injured.  Many died in a bomb shelter inside the building
where one of the bombs exploded.

Bill, who was in one of the outside shelters, did a quick head count and discovered that one of his female workers was missing.
He was sprinting across the apron back towards the hangar to find her when the Ju-88 attacked.  He was blown across the apron,
but survived.  (Bill passed away in 1975, partly from lung damage that was attributed to the bomb blasts that day.)

The Ju-88 came around for a second pass, and eyewitnesses stated that they were machine gunned as they ran for cover.

    It was a significant blow to an important military aircraft project.  The airfield defences were alert, though, and put up a barrage of machine gun and 40mm Bofors gun fire
which hit and crippled the Ju-88., damaging the bomber's starboard engine and tail.  The bomber crash-landed in flames at Eastend Green Farm, Hertingfordbury,
where the crew scrambled clear and were captured unharmed before the fire took hold.   All were captured and spent the rest of the war in a prison camp in Canada.

The gutted 94 shop along with most of the materials allocated to the production of the first 50 Mosquitos.
More images of the enormous damage may be found here.
At the time the building was also home to the de Havilland Aeronautical Technical School.

The downed Hatfield Ju-88 being guarded at Eastend Green Farm, Hertingfordbury.
This book contains a very detailed account of the incident, including many contemporary eyewitness accounts.

The burnt out Ju-88 wreckage - more images may be found here

Julian Evan-Hart's daughter at the precise location of the crash.
Julian, Britain's foremost metal detector expert, has recovered parts of the downed Ju-88 from the field.

Meanwhile, Clarice was waiting for Bill to visit her after work.  By late evening, there was no sign of him.
It wasn't until then that a friend told her "Didn't you hear?  DH's got bombed today."
Bill finally turned up at about 3 a.m. the following morning, covered in mud and blood.  There had been chaos and carnage to deal with.

The remarkable story of the Mosquito is told in this de Havilland film.
Part 1    Part 2    Part 3

After the bombing, the manufacture of Mosquito components was dispersed.  Being a relatively simple wooden aeroplane, over four hundred sub-contracted
furniture factories, garages and workshops throughout the area were pressed into Mosquito component production.  Bill's job became the co-ordination
of this massive effort.

The British-built Mosquitos had major structural components fabricated from wood in High Wycombe, Buckinghamshire, England.  Fuselages, wings and tailplanes
were made at furniture companies such as Ronson, E. Gomme, Parker Knoll, Austinsuite and Styles & Mealing.  Wing spars were made by J. B. Heath and Dancer & Hearne.
Many of the other parts, including flaps, flap shrouds, fins, leading edge assemblies and bomb doors were also produced in the Buckinghamshire town.
Dancer & Hearne processed much of the wood from start to finish, receiving timber and transforming it into finished wing spars at their factory on the outskirts of High Wycombe.

Initially much of the specialised yellow birch wood veneer and finished plywood used for the prototypes and early production aircraft was brought in Liberty Ships from firms in Wisconsin, USA.
Prominent in this role were Roddis Plywood and Veneer Manufacturing in Marshfield.  In conjunction with the USDA Forest Products Laboratory, Hamilton Roddis
had developed new plywood adhesives and hot pressing technology.

Hatfield rolled out an incredible 3,326 Mosquitos, plus another 1,476 at its shadow factory at nearbly Leavesden.
Such production numbers represented a tremendous achievement under war conditions.
(A further 1,076 were produced by de Havilland, Canada, 1,066 by Standard Motors, Coventry, 244 by the Percival Aircraft Company, Luton,
212 by de Havilland, Australia, 122 by Airspeed Aircraft, Portsmouth and 86 by de Havilland at Hawarden, Cheshire.
Total Mosquito production was 7,781, of which 6,710 were built during the war.)

One perk of his job was that Bill had extra petrol rations because of the need to visit dozens of his sub-contractors.  And if he
made the odd private journey and got stopped, there would always be a particular sub-contractor he was heading for!

A meeting of the Aircraft Division Joint Production Committee at Hatfield held on April 21st 1942.
 Bill Grace is seated third from left, in the pinstripe suit.  The meeting was evidently significant enough to attract the attention of the official DH photographer.
(I found this photograph in one of the company photograph albums at Hatfield before it closed.)
Note also the parquet flooring of the DH Hatfield administrative building.  Too small to read in this photograph is the production plan pinned to the wall.

And here are the names and positions of the meeting participants.  W. H. Grace was the Superintendent of Stores.
His role included co-ordinating the supply of Mosquito parts from hundreds of suppliers across the Home Counties and beyond.
What we might call supply chain management today.

Note also Christopher Martin Sharp at top right, holding a file.  He was later to write the definitive DH: A History of de Havilland.

This photograph was unearthed by Roger de Mercado, Chairman of the de Havilland Aeronautical Technical School in June 2021,
who found it in a copu of 'Our Job', issued to DH personnel during the War.  It can be found here, and incudes a couple more references to W. H. Grace.
(Note that the two pictures are very slightly different, taken moments apart, but Mrs. D. G. O'Dell is absent from the first photograph.
Did she need to leave in a hurry?!)

The Hatfield production line focused primarily on Mosquito bomber production, while the Second Aircraft Group (SAG) factory at nearby Leavesden
concentrated on Mosquito trainer and night-fighter production.

Each half of a Mosquito fuselage was laid down on a massive former on which was wrapped a sandwich of ply and Balsa wood, giving the Mosqiito its immense strength.

The two halves were then fitted with their internal systems before being bonded together.

Once the fuselage halves were mated, the structure was covered in madapolam fabric, attached with red dope, evidently applied with sponges as seen here.

Until Bill and Clarice were married in 1942, Bill lived at 62 Aldridge Avenue, Stanmore, just a couple of miles northwest of Stag Lane aerodrome.
He also sometimes stayed at the Stone House, a hotel across the road from the main gate at Hatfield.

The Stone House.  This Hatfield landmark was demolished during the construction of the Hatfield tunnel in the eighties.

When Bill and Clarice married, a small bungalow in Goodyers Avenue, Radlett was requisitioned for them.

A sheet of headed paper of the DH Aircraft Company Second Aircraft Group, Factory No. 2, Leavesden.  Factory No. 2 was where Mosquitos were produced.
Bill had arranged for Clarice to transfer to DH's where she took a position as an industrial nurse at Leavesden where, at the time, Halifaxes and Mosquitos were being manufactured.
(The reason why this particular sheet of paper has survived is because Clarice wrote a recipe for chocolate cake on the reverse!)

On one occasion, Clarice was being taken around the airfield in a Jeep.  While waiting at traffic lights on the peri-track to cross the runway threshold, the driver noticed
that the pilot of the Halifax on short finals had omitted to lower his undercarriage.  The quick-thinking driver told Clarice to
run out in front of the approaching bomber and wave him off.  The driver was wearing camouflage, but Clarice was in her all-white
nurse's uniform.  She ran onto the runway and frantically waved the oncoming bomber off.  It overshot over her head at the last moment, went round, and landed safely, gear down.

A rare colour photograph of a Handley Page Halifax I which was retained by the manufacturers for experimental work at Handley Page's Leavesden factory airfield.
Here it is shown in flight over Kings Langley, Hertfordshire in June 1943.

Leavesden Mosquito personnel with one of the Mosquitos produced at Leavesden outside the Mosquito flight shed.
Third from the right, seated in the front row is an industrial nurse.  This is either Clarice Grace or one of her colleagues.
(The figures add scale to the size of the propellers and spinners!)
Grateful thanks to Richard Riding for this photograph taken by his father E. J. Riding, thought to have been taken in the summer of 1944.
At that time, the factory was churning out Mk III's, Mk. 33's and NF36's.

Clarice became a friend of John de Havilland who was one of Geoffrey de Havilland's sons and a test pilot for DH's.  One day he offered to take her up in a Mossie.
However, on 23rd September 1943, John was killed in a Mosquito mid-air collision near St. Albans.

The accident report states, "During a test flight of a de Havilland Mosquito Mark VI (HX850), flying with flight test observer John H. F. Scrope, he collided in the vicinity of St. Albans
with another Mosquito, a Mark VI flown by pilot George Gibbins.  Both aircraft were made of wood, and disintegrated in the air, killing all four occupants aboard.
G.F. Carter was flying as an observer in Gibbins's aircraft".

However, it was widely suspected at the factory that the fatal accident was the disastrous result of a tail-chasing prank that went terribly wrong.
Weight is added to this theory by an event that occurred only the previous month, on August 8th.
Dick Whittingham, who worked in the Experimental Flight Test Department at Hatfield was airborne with Geoffrey de Havilland in the prototype Mosquito W4050.
He recounts, "On the way back to Hatfield we were passing over Welwyn Garden City when we saw a Mosquito below us
circling over the town centre.  Geoffrey said “It’s John”, and immediately dived on to his tail, whereupon John went
into a tight turn. As their turn got tighter and tighter, Geoffrey said “Let me know when you black out.”  When I
eventually said “Now” he seemed rather disappointed saying “I thought that I should have lasted longer than you but I didn’t.”
Evidently, the Mosquito flight test crews played this tail-chasing game regularly.

Clarice never had her Mosquito flight.

The report on the Mosquito collision in the September 2nd 1943 issue of Flight magazine.

Meanwhile Bill worked on at Hatfield under difficult wartime conditions.  The staff took turns in firewatching every night.
He and a friend, when on the night shift in the deserted administrative block, sometimes relaxed in Geoffrey deH's office,
smoking his cigars and drinking his brandy!

One night there was a serious fire in the Mosquito flight shed.  One of the fire watchers was walking through the shed
among the latest group of production Mossies when he noticed a slight fuel drip from under the wing of one of the
new aircraft.  Seeing an opportunity, he decided that he could re-fill his cigarette lighter, so he opened his lighter and held it
under the drip.  When it was full, he instinctively flicked the lighter to check it, and WHOOSH!  Up went the wooden Mossie in flames!

At the end of the war, DH's laid off thousands of workers.  Bill and Clarice bought a local tobacconist and confectioner's shop in nearby Fleetville,
at 205 Hatfield Road, which he and Clarice ran until they retired in November 1966.
Bill never learned to fly, but he maintained his aviation associations by joining the nearby Elstree Flying Club as a social member.

In the sixties, the hangar at Elstree was full of civilianised war surplus types - Miles Magisters, Messengers, Geminis, Austers,
Proctors, and Tiger Moths - not to mention Tim Davies' Mk. IX Spitfire G-ASJV (MH434).

My parents would spend their evenings at the bar with friends, but because of licensing laws, as a young boy of ten years old,
I was not allowed into the bar.  So I spent these summer evenings sitting on the bench outside with my Coca Cola and packet of crisps,
watching the last aircraft land and be pushed into the hangar for the night.
When the pilots had repaired to the bar, I would wander through the cavernous black hangar and commune with the old aeroplanes,
some still warm and smelling of hot oil and fuel.  Naturally, I was most drawn to the Spitfire, the Hornet Moth G-ADUR and my favourite,
Mike Fallon's smart red and white Tiger Moth - G-AOIM.

Mike Fallon's Tiger Moth G-AOIM at Elstree in the sixties - a frequent sight in the circuit on summer evenings.
(G-AOIM (T7109) has now been meticulously restored to its wartime specification by Roger Brookhouse and is available for experience flights by Finest Hour Warbirds.)
(Photograph with thanks to David Whitworth)

It was beyond my imagination as a young boy of ten or twelve, that, one day, I would have the privilege to own a Tiger of my own.


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