Fred Thomas Perris (January 2, 1837 – May 12, 1916) was Chief Engineer of the Atchison, Topeka, and Santa Fe Railway, who oversaw the construction of the last leg of the 2nd Transcontinental Railroad from Barstow, California through Cajon Pass and down to San Bernardino and Los Angeles, a task that employed six thousand laborers, and is still in use by BNSF Railway and Union Pacific Railroad He also laid, track from Riverside, California to San Diego, California laying out a series to town sites along the track, one of which, Perris, California was named in his honor. The city of Perris, California, a station on the California Southern Railroad, was named in his honor.(Its Cajon Pass. Not El Cajon Pass according to Chard Walkers "Cajon. Rail Passage To The Pacific")