My mom graduated from Senn in the early sixties. I went to one of the open houses a few years ago and called her while there to ask if she remembered where her locker and homeroom were. I had given her a starting point, and after forty years, she was still able to talk me through the building.
Original image available for purchase, at time of posting, from here: Senn High School
A number of famous people graduated from Senn over the years, including Burr Tillstrom, creator of Kukla Fran and Ollie; Sidney Sheldon, an Academy Award and Tony Award winning playwright, screenwriter, and novelist who helped create television series such as The Patty Duke Show, Hart to Hart, and I Dream of Jeannie; Harold Ramis, a comedy writer, director, and actor (Caddyshack, National Lampoon's Vacation, Ghostbusters, Groundhog Day, Analyze This); jazz singer Anita O'Day; Clayton Moore, aka The Lone Ranger; Allan Katz, who wrote and produced M*A*S*H; Harvey Kormon, best known for his work on the Carol Burnett Show; and author John Jakes, who has written a number of bestsellers, including North and South.