Leon Bloomberg was born Jan. 5, 1920 in Kansas City, Missouri, to a Jewish Polish émigré father, Harry Bloomberg, and mother Rose Rosenthal. His mother died when he was nine months old and his father later remarried. Leon had two half-brothers, Morris and Izzy Bloomberg. Leon was fluent in both English and Polish and acted as a translator for his family.

After high school he attended aeronautics school. During the Second World War, Leon and his friends Lou Cohen and Louie Swartz traveled to the east coast to find aircraft work in New York. When they stopped in Baltimore on the way to New York, they learned about work in Glenn L. Martin Company aircraft manufacturing company in Middle River, Maryland. They stayed in Baltimore where Leon met his future wife, Esther Levin, who lived across the street from Leon’s residence. They married on March 21, 1943.

Leon was drafted into the United States Army in early 1944, during the Second World War. He was allowed deferment due to his wife’s pregnancy. Jacqueline Bloomberg was born in July 1944. In September, Leon reported to basic training in New Cumberland, Maryland and was later sent to Camp Croft, South Carolina. In February 1945 he was deployed and served overseas in England, France, Germany, and Czechoslovakia from 1945 to 1946. He returned from deployment in May 1946.

He died Oct. 6, 2014 in Lutherville, Maryland.