[josquin]

Daisy,

Royal Air Force officers' service records are available, for both men, from
the National Archives at Kew. The records can be downloaded, for a small
fee, by citing these file references:

William Birkett 10 April 1885 AIR 76/40/30

Noel Boucher 22 December 1896 AIR 76/47/92

Birkett"s enlistment papers (attestation papers) are available from the
Cabadian official archives; find the address online by using a search engine,
like Google, and enter Canadian Army Attestation Papers, W.W.I.
Birkett was born on 10 April 1885, at Dalton Furness, Lancashire, England, emigrated to Canada, and was employed as an engineer and living at
Moose Jaw, Saskatchewan, when he enlisted in the Canadian Expeditionary
Force, 128th Battalion, on 1 April 1916. He transferred to the RAF
subsequently; his RAF service record may help with the details of his
service, but some records are very detailed while others are quite
minimal. A William Birkett was married at Toronto, Ontario, Canada,
to Marion Jane Elliott, on 26 November 1921, but I am not certain this
is the same man because no birthdate is listed. There is also a United
States Census listing for a William Birkett, born in Canada "about 1886"
who was living in Bonneville County, Idaho, U.S.A., with his wife, Nita.
Noel Boucher was born on 22 December 1896, at Rochester, Kent,
England (the birth was registered the following January, at Maidstone,
Kent); the 1901 Census states he was living at Rochester; the 1911
Census gives his residence as St.Peter Intra, Kent. There is a marriage
record for a Noel Boucher, in Kent in the mid-1920s, to Miss Brice.
There is a death listing for a Noel Boucher, registered at Hammersmith,
London, in 1968 (the registry location may not be where he died, but
rather where the death was registered).
I hope that was helpful and provides some avenues for you to learn
more about both men. The gentlemen of the Forum may provide more
details about their service with 20 Squadron.

Regards,

Josquin