In 1927, Spalding's Official Pacific Coast Interscholastic Foot Ball Guide reported that "Charles Dvorak, the renowned player of former years on Yost's University of Michigan team," was coach at Roosevelt High School.
In 1927, Spalding's Official Pacific Coast Interscholastic Foot Ball Guide reported that "Charles Dvorak, the renowned player of former years on Yost's University of Michigan team," was coach at Roosevelt High School.