Sandy -I have only a few FR city directories. I 1897 there are no Estrella's in FR. In 1925 there are 2 Estrellas listed as photographers, i.e. Mary and Rose, both at 376 Bay St. This is a residential area much unchanged today. Likely they worked from their home.
In the 1930 directory there is no Estrella photographer, nor any photographer listed at Bay St.
Hope it helps.