Martin, John
From Santa Cruz County history wiki
John Martin was a San Francisco investor and partner of Fred Swanton during the beginnings of what is now the Santa Cruz Beach Boardwalk. Martin's largest role was as one of the founders of what is now Pacific Gas and Electric Company. He also invested in the Union Traction (streetcar and later bus) company.
- John L. Chase, The Sidewalk Companion to Santa Cruz Architecture (4th ed. 2023), Chapter One, item (40), page 26
- Charles S. McCaleb, Surf, Sand & Streetcars (a number of mentions)