My Dad, George Walker, graduated from Mt Jackson in 1936. I have a picture taken at a similar angle, probably c 1936, with a group of Mt Jackson students with “Prof” McCullough. My Dad is in it along with his sister Jean who was 5 years younger. Maybe it was the chorus group. I also recognize Mary Leslie (McKim), Class of 1936, and Chester Stewart, Class of 1939 or 1940.