This blog post was added here in 2018, and has gotten many views and comments since:
https://bubbleinfocom.wpenginepowered.com/2018/05/11/gagosian-mansion-in-la-jolla/
Wayne Gagosian, son of the owners, came across it last week, and was very generous to send in some of his personal photos to compliment those from the collection in the link above.
Thanks Wayne!
Thanks Wayne (and Jim).