Photographic portrait of Professor Charles Frederick Holder and boatman Mexican Joe displaying a fish at Catalina, ca.1903 (1930?). A large tuna fish can be seen at left hung by its gills from a pole. Mexican Joe is visible at center, who is also known as Jose Felice Presiado. He is wearing a large straw hat, vest and long pants. He has a long pole with a large metal hook at left. Dr. Holder is visible at right and can be seen wearing a corduroy suit and striped hat. He has a gray beard and glasses and is holding a long fishing pole. Holder was a conservationist, sportsman, and professor of Piscatorial science.