There is a brief reference to what happened to McDowell in this link, search for McDowell.
https://www.ang.af.mil/Portals/77/do...-19-121824-273
This was an interview with Maj. Gen. Donald J Strait. In the interview, which "jumps around" some, Gen. Strait was asked a question about the Battle of the Bulge but he brings this incident up. The footnotes in the text note:
"Captain McDowell evaded capture after being shot down on 18 September 1944
in P-47D 42-26534; if this is the incident General Strait refers to, it is not (during) the Battle
of the Bulge."
"MAJ. GEN. STRAIT: Oh, yeah, we did. We were flying P-47s then. In fact my roommate, Reggie McDowell, got shot down that day.
He got hit in the engine and he crash landed in the battle area and American troops came up to the airplane, got him out of the cockpit, put a helmet on his head, gave him a rifle and he spent a week in the trenches. When he came back home, we finally got him out of there and got him into France and back into England, he never flew again. He was so operationally exhausted that the flight surgeon sent him home."
"He was the nicest guy too. He lives in Florida right now. But he got hit badly. He was my roommate, Reginald C. McDowell."
If this description is correct (but the date was misremembered) there would not have been an "Escape and Evasion" report as McDowell was with allied troops the whole time.
His name does not show up in this 4 page list of MIS-X reports on evasions.
http://www.conscript-heroes.com/Art38-MIS-X.html
He died in 2015.
https://www.findagrave.com/memorial/...rence-mcdowell
He was living in Arizona at that time having moved there from Florida.