 The Don Pedro Reservoir behind the Don Pedro Dam takes its name from Don Pedros Bar mining town.San Sevaine Lookout in the San Gabriel Mountains, San Sevaine streets in Rancho Cucamonga, Mira Loma and Fontana, and the San Sevaine flood control channel and spreading grounds, are named (with misspelling) for the Sainsevain brothers.Jean Louis Sainsevain (1817–1889) was born in Béguey, France a village near Bordeaux.