[1] Siegfried played college basketball for Ohio State University, and his tenure there overlapped with future Hall-of-Famers Jerry Lucas and John Havlicek.

Siegfried adjusted his scoring to allow for Lucas and Nowell while joining Roberts and Havlicek as a key defender.

The Ohio State Co-Captain of the 1960 team, Siegfried played a key role in the Buckeyes run to the 1960 NCAA title.

Also named All-Big Ten, Siegfried did not get the All-American consideration he may have been due because of the star presence of Lucas.

The team, owned by future New York Yankees owner George Steinbrenner, and coached by John McLendon and Bill Sharman, won that pro league's 1961–62 title.

Boston announcer Johnny Most often noted his tenacious defense, calling 'Ziggy's in his shirt tonight' to describe Siegfried on many nights.

[3] Following his NBA career, Siegfried counseled prisoners at the Mansfield Correctional Institution in Ohio and did motivational speaking.

He also served briefly as the Executive Director of the Central Ohio Chapter of The Associated Builders & Contractors (ABC).