Hi, If you've found the answer about Frederick, please ignore this posting.
I found a Frederick Fish on a New York Passenger List. Frederick Fish arrived 4 Aug 1900 aboard Campania in New York. Born=abt. 1870, single. Port of Departure=Liverpool, England. Ethnicity/Race/Nationality=English. Last Residence=Blackburn, England. Occupation=Marceller [beautician?] Destination=Fall River, OH. Uncle in Fall River
Frederick was traveling with: Thomas Eccleston, 40, male. Occupation=Joiner. Last Residence=Blackburn, England. Destination=Fall River, OH.
However their info had a line drawn through it and I don't know what that means.
I didn't find himin the California Death Index. When did he die in California? Do you have his obituary?