Keith Conning: I don't know what Rivers' split was. I don't know if there is a video of the race. I got my splits for Stanford from the etrack newsletter, volume 16, No. 04, January 29, 2017.
Are you Colonel William B. Johnson? I attended the U.S. Air Force Academy from 1960-1961, before transferring to Cal.
My son Andrew Scott Conning graduated from Georgetown in 1994. He is now in a doctoral program at Harvard.