Odd about the spelling of the name. In the WWII casualty list published in 1946 for Pima County, AZ we see:
Captain Alfonso G Segraves O-885371 as DNB. (Without the "a"). His name also appears on the Tucson war memorial.
There is also a draft registration card on fold3 (dated Oct 16, 1940) for Alfonso George Segraves, nickname is "Bud".
For those with fold3 access here is page 1:
https://www.fold3.com/image/539683721
He was living in Tucson, Pima County, AZ. He was born in Carroll County, Indiana on May 21, 1917. He lists his father as Earl Otis Segraves and has signed the card as Bud Segraves. (again without the "a").
There are a couple of address changes written on the margins of the card.
One seems to be the Aero Center Aviation School in Bakersfield, CA. The other seems to be an aviation school in Tulsa OK. One of these changes is dated in December, 1940. (In light of some of the newspaper articles below, he may have already joined the RAF and was being sent to flight school(s) in the US.)
There are also Tucson newspaper articles in the 1940s that sometimes give his name as Segraves.
https://www.newspapers.com/clip/1668...egraves__1944/
Another article says he enlisted in the RAF in January, 1941 and transferred to the AAF in October, 1942.
There is an article here about Lance Wade (another Tucson native who joined the RAF) that mentions Segraves. Implication is that they both flew in the Eagle Squadrons. (Did they?)
https://www.newspapers.com/image/118003079/
There are several articles dated June 15, 1945 which say he drowned and there is a search for the body.
I doubt the body was ever found. He probably should be listed on the West Coast Missing Memorial.
Then there is this, an odd coincidence but apparently a different "Bud":
http://www.tulsaworld.com/archives/r...97d96078d.html