http://so-cal-arch-history.com/archives/4253

http://www.sandiegohistory.org/journal/97fall/gill.htm

https://www.hillquest.com/whos-who/

http://www.sahscc.org/site/index.php?function=architect_details&id=6

http://misfitsarchitecture.com/2012/02/04/architectural-misfit-no-2/

http://en.wikipedia.org/wiki/Irving_Gill