John Treanor was vice-president of the San Diego Water Company. He purchased the land to build Henshaw Reservoir and then
later Hodges Dam and reservoir. In addition, he was on the Board of Trustees at Pomona College in the early 20th century.
(Treanor, Thomas. John Treanor A Sketch of his Life wiht Excerpts from His Letters, Los Angeles, Zamorano Club, 1937.)