He was elected as a Republican to the Philadelphia City Council in 1939 and served one term from 1940-1944. The Hollenback Center was completed in October of 1968, seven months after Hollenback passed away at the age of 82 on March 12, 1968. Hollenback married Marion Cressman in 1917 and fathered one son. Newspaper clippings about Hollenback and the University of Pennsylvania football team's exploits from 1906-1908, including later retrospective articles, comprise the bulk of the material in the scrapbooks. Clippings about Hollenback's coaching career and the later careers of friends and former teammates, as well as assorted photographs, are also prominent.
Photographs make up a large portion of the rest of the collection.
Included among these is a combined photo album and scrapbook containing a concentration of photographs of Hollenback, teammates, friends and family and correspondence from his football playing and coaching career, 1905-1921. The photo album and scrapbook also contains some correspondence relating to reunion dinners and other newspaper clippings dating from ca. The remainder of the collection is composed of, among other things, Hollenback's varsity football letters of 1906 and 1908 from the University of Pennsylvania and the title page of a book given to Hollenback by Bill Roper.