See if you can find a copy of THUNDER FROM HEAVEN: THE STORY OF THE 17TH AIRBORNE DIVISION, 1943 TO 1945 by Don Raymond Pay (Boots, The Airborne Quarterly, Birmingham, Michigan, 1947). It's one of those "yearbooks" that proliferated in the years immediately following the war. Mentions 507th and 513th Parachute Infantry and 193rd and 194th Glider Infantry, as well as 550th Airborne Infantry Battalion (probably too general to be of any use to you but it's worth a try).
You might locate a copy through Inter-Library Loan (ILL). Important! Libraries are becoming increasingly reluctant to loan these old treasures but try anyway. The very worse they can possibly do is say, "No".
The 17th Airborne Division was one of the last to be deployed, landing in France Christmas Eve, 1944. Also, one of the first to return to the U. S. It's possible your uncle simply returned to the States with the 194th (Law required that a unit must be full, TO [Table of Organization] strength to be deployed or re-deployed).