service outside the US, Destination: PT, US, AT, US. I think I know what the US and AT are, United States and Asiatic, but what would the PT be? Pacific Theater?
A poss. senario would be him coming back from the PTO, attending a school for some needed skill, then being assigned to the Alaskan theater where that skill was needed. Or he could have been assigned to a different unit that trained in the US for while before transferring en mass to Alaska, Kiska or Attu probably. The training would include "how to not freeze your ass off in Alaska" classes, I hope.
He was 24 when he was inducted on 1 Oct. 41. Battles and Campaigns: Aleutians Islands (GO 33 WD 45) don't know what the numbers mean. Anti-tank guns (57mm. and 37mm) crewman (610) (instructor) at Ft. Benning, GA. Became Cpl. and Rifleman (Instructor) (745). again don't know what the numbers mean. Decorations and Campaigns: Asiatic pacific Service medal with 1 Bronze Star, American Defense Service Medal, and American Service Medal. What I find interesting is Alaska. Statehood was approved by Congress on July 7, 1958. so he was defending Alaska, owned by no one at the time, Foreign country?
Alaska was a US territory at the time. We bought it from Russia a few decades prior to the war. See: Alaska Purchase - Wikipedia
the numbers 610 and 745 are the numbers assigned by the Army for individual specialty codes. There is a master list somewhere that would have its job description.
You might try here US Army World War II Military Occupational Specialties (By Job Area) This might be better, but longer https://www.alternatewars.com/BBOW/Sources/TM_12-427_1944.pdf
Not trying to make waves or nit-pix, but something just didn't add up with these Theaters of Operations. Several sources said the Aleution Campaign was in the American Theater. (couldn't find any reference to an Alaska Theater) Checked with other sources and they definitely show the Aleution Campaign was in the North Pacific Campaign of the Asiatic-Pacific Theater. (this is what the bronze campaign star on the Asiatic-Pacific Service Medal is for). There was no ground combat in the American Theater, Only Anti-Submarine. World War II - Asiatic-Pacific Theater Campaigns | U.S. Army Center of Military History World War II - American Theater Campaign | U.S. Army Center of Military History The following quote is from Wikipedia and I believe the last part is wrong-The Aleution Islands can't be in both the American Theater and Pacific Theater at the same time. I think whoever wrote this just presumed that since Alaska was a US Territory that it was in the American Theater. "The Aleutian Islands Campaign was a military campaign conducted by the United States and Japan in the Aleutian Islands, part of the Alaska Territory, in the American theater and the Pacific theater of World War II starting on 3 June 1942."
It would help to see it printed on the original document. As it stands, it does not make much sense, unless it is intended to be: Departed US for the Pacific Theater. returned to the US, departed the US for the Alaska Territory, returned to the US, which would match his service.
I would especially like to see the dates. Box 36 on the separation document ( Service outside Continental U.S. and return) has three sections, Date of Departure, Destination, And Date of Arrival. (the whole document would really help).
If the OP would post the whole Separation Document it would help guide the discussion as well as answering some of the questions raised.