The band of Tongva people living in the Verdugo Mountains area, that both settlement locations are within, were named the Hahamog-na and Hahamongna by some Spanish-Mexican eras 'neighbors' and later Euro-American immigrants and historians. The two settlements sharing the 'same sounding' name, with different spellings given by non-native people, may stem from the band inhabiting both places. Research with present day Tongva-Gabrieleño people, historical researchers and ethnologists, and supported by citations is needed.
^http://www.savehahamongna.org/ Bounded on the north by the mountains and Jet Propulsion Laboratory and on the south by Devil's Gate Dam, Hahamongna contains five unique habitat zones that only exist in alluvial canyons near the mountains. Most sites like this in Southern California have been destroyed. . accessed 8/28/2010
^Ogden Hoffman, 1862, Reports of Land Cases Determined in the United States District Court for the Northern District of California, Numa Hubert, San Francisco