Lester was a carpenter in civilian life. He enlisted in the army 28 Feb 1945 and was stationed at Ft. Snelling, Minneapolis.
He is listed in the 1940 census in Glenwood as a bartender at the Rogers Hotel, alongside a Mildred Rooney, age 21. And he is shown as being married. I can't find a Mildred Rooney of that age, either by birth or marriage, so could it have been a wife?