I’ve been working on the French lines over the passed two weeks. I came across this book that was really a gold mine of information. If you’ve got French lines in California (especially San Francisco or Oakland) you’ll want to check this book out.
It is called “Guide des Francais en California: 1916-1917”. Edited by Georges Lanson (It appears to be self published).
The book includes information about the French in California. But, the best part is it lists by city people of French ancestry who owned businesses in California. My ancestors owned several laundries in the San Francisco Bay Area. I was able to find them in this book with the name of the laundry–something I didn’t have before.
There are also advertisements for some of the businesses. I found one for Charles Segalas who was a liquor manufacturer.
You can also read the book at this link.