Greenwald, William John at age 77 passed away suddenly on 10/4/2020 after a brief illness at Fairview Southdale Hospital. Bill was born in Milwaukee, WI on 4/10/1943 and graduated from Menomonee Falls High School in 1961. Then he served four years in the U.S. Air Force in Germany as a decoding specialist and was honorably discharged in 1968. He went on to complete a civil engineering degree in 1972 at the University of Wisconsin and then worked for the Army Corps of Engineers and the U.S. Fish and Wildlife Service at Fort Snelling in Minneapolis until retirement in 1995. Bill was an outgoing generous person who found joy in helping friends and enjoyed golf, wood working, photography, classical music, his Porsche, and civil war history. Preceded in death by his father Edmund, mother Louise, and sister Susan. Survived by brother Guy, niece Gaye Greenwald, sister Delome and many close friends. Burial services Thursday 10/29/2020 at 10 am at Fort Snelling National Cemetery.