![csrcl_193 - San Quentin Prison - Dr. Leo Stanley Collection, c.1910-1915 - Anne T. Kent California Room: Digital Collections csrcl_193 - San Quentin Prison - Dr. Leo Stanley Collection, c.1910-1915 - Anne T. Kent California Room: Digital Collections](http://contentdm.marinlibrary.org/digital/api/singleitem/image/sanquentin/9/default.jpg)
csrcl_193 - San Quentin Prison - Dr. Leo Stanley Collection, c.1910-1915 - Anne T. Kent California Room: Digital Collections
Dr. Leo Stanley, Mildred Bissinger, and former Judge Hadden Roth, organizing materials from Dr. Stanley's personal collection, August 1972 [photograph] — Calisphere
![Larry Steven Parks, Lawrence Starling Parks, and Leo Stanley Parks Dressed for Church, March 1956 | Ann Arbor District Library Larry Steven Parks, Lawrence Starling Parks, and Leo Stanley Parks Dressed for Church, March 1956 | Ann Arbor District Library](https://aadl.org/sites/default/files/photos/N018_0861_001.jpg)
Larry Steven Parks, Lawrence Starling Parks, and Leo Stanley Parks Dressed for Church, March 1956 | Ann Arbor District Library
![Dec. 16, 1921] Leo Stanley, chief physician of California's San Quentin Prison, reports his experiments injecting prisoners with a “gland serum” are a success. (He means animal testicles.) : r/100yearsago Dec. 16, 1921] Leo Stanley, chief physician of California's San Quentin Prison, reports his experiments injecting prisoners with a “gland serum” are a success. (He means animal testicles.) : r/100yearsago](https://preview.redd.it/oilhnl5t01681.jpg?width=546&format=pjpg&auto=webp&s=bd84ca6115dcd3a20d0d03da2b97696220368cdc)