[2][4] In 1921, he joined Skelton and Breer in forming the Zeder-Skelton-Breer Engineering Company, a partnership that would later be known as The Three Musketeers.

[5] Zeder served as special consultant to the Chief of Army Ordnance in World War II.

They had one son and three daughters, Fred M. Jr., Dorothy June, Priscilla Ann and Margaret Lucille.

[2] Zeder died while on vacation on February 24, 1951, at St. Francis Hospital in Miami Beach.

[6] Zeder received a honorary master's degree in engineering from the University of Michigan in 1933.