In the 1880s, John J. Montgomery built and designed his own ornithopters and manned glider designs at the Montgomery family Fruitland Ranch near what would become Palm City. His gliders were tested on the surrounding hillsides of Otay Mesa. These flights represented the first of their kind in the nation.[5]
Palm City was established in 1914, and named for the palms lining Palm Avenue.[6] Indeed, the original name for the area was "Palm Avenue", until the post office declared that name unsuitable.[7] That same year, the county opened up a library branch to serve the community.[8] Even a year before it was established, it was the terminus of a small railway, the Mexico & San Diego Railway, that ran to Imperial Beach, and operated two cars.[9][10]
In 1926, the community was all of 250 persons.[13] Prior to the internment during World War II, the city was home to the Iguchi brothers, who farmed seventy acres in the community.[14] By 1942, the community had grown to a population of 720.[15] With the end of World War II, the community became population concentration area for returning Japanese Americans.[16] Beginning in 1952 the community maintained its own sanitation district; it was annexed by the city in 1963.[17] Palm City, along with other portions of South San Diego, was annexed from San Diego County in 1957.[18]
In 1983, the community experienced damage due to an earthquake, 4.6 on the Richter scale, that occurred ten miles off the coast, in the Pacific Ocean.[19] It was stated by the California Institute of Technology at the time to be the "largest quake to hit San Diego since 1932."[20]
In 2004, using DNA evidence, a convicted felon rapist was found to be responsible for the torture and killing of two boys who went missing in Palm City,[21] near the Otay River, in 1993.[22] He had previously been convicted of a rape that occurred seven months after he had murdered the minors.[23] The felon was sentenced to death, and is housed at San Quentin State Prison.[24]
^Corona, Antonio Padilla (2004). Paul Bryan Gray (ed.). "The Rancho Tia Juana (Tijuana) Grant"(PDF). The Journal of San Diego History. 50 (1). San Diego Historical Society. Retrieved 1 June 2011.
^Economic survey of California and its counties, 1942. California state printing office. 1942. pp. 564–5. Retrieved 1 June 2011. Between here and the Mexican border are the unincorporated communities of Nestor, Otay (275), Palm City (720) and San Ysidro (1900).
^Jon Jamieson (January 2002). "Reflections on the Past". The Bull Sheet. California Water Environment Association. Archived from the original on 24 March 2012. Retrieved 31 May 2011. By 1952, with a population of 5000, Palm City formed a sanitation district on May 27, 1952 to provide sewage service to the local area. Instead, on September 3, 1963 the City of San Diego annexed the community of Palm City and took control of the existing sewerage system and effectively dissolved the sanitation district.
^Annual report of the Secretary of War, Part 1. Washington: Government Printing Office. 1918. p. 444. Retrieved 1 June 2011. The hospital at Fort Rosecrans is in size entirely inadequate. It is used as a base hospital for the troops at Camp Walter R Taliaferro, San Diego; Camp Lawrence J Hearn, at Palm City; the Signal Corps Aviation School and one company of Infantry at Tecate. The hospital is continually overcrowded and many of the patients are being cared for in tents. Estimates for the erection of a 24 bed ward are now being prepared.
^Theresa Muranaka; Cynthia Hernandez. "Time Has No Boundaries". California State Parks. State of California. Retrieved 30 May 2011. From 1916 to 1931, Camp Hearn, established for potential skirmishes with the troops of Pancho Villa, was a military presence.
^Ruhlen, George. "Fort Rosecrans, California". The Journal of San Diego History. 5 (4). Retrieved 30 May 2011. A troop of the 11th Cavalry was stationed at Fort Rosecrans from October 1931, following the abandonment of Camp Hearn at Imperial Beach. In August 1932 they moved on to Monterey.
^Erwin N. Thompson (1991). "Interlude, 1920-1935". Cabrillo National Monument. National Park Service. Retrieved May 30, 2011. The board chose a site for one battery of 155mm guns at Point Loma near the new lighthouse, and recommended a location 1,500 yards south of Coronado Heights and west of south San Diego, on the former Camp Hearn site, for the other 155mm battery, which was never built.