Dennis’s dad, Joe, worked at Homestead High School in Cupertino, California in the 1960’s. Steve Wozniak attended Homestead in the 60’s too and graduated from there in 1968. Joe has the yearbook from 1968 and I found a couple of pages with Steve Wozniak on them. The first one is his senior photo. In the second scan, Steve appears in both the Math Club and Electronics Club photos. The text mentions he’s the Electronics Club president.