The address of the Southern California Historical Aviation Foundation is: 12016 Prairie Ave, Hawthorne, CA 90250-3108
The address of the Golden West Historical Foundation is: Po Box 714, Foresthill, CA 95631
The address of the Historical Research Foundation is: 1242 Lachman Lane, Pacific Palisades, CA 90272
The address of the Arcadia Historical Museum Foundation is: Po Box 661514, Arcadia, CA 91066-1514
The address of the Livingston Historical Museum Foundation is: Po Box 104, Livingston, CA 95334-0104
The address of the Adelaida Historical Foundation is: 9001 Chimney Rock Rd, Paso Robles, CA 93446
The address of the Niles Depot Historical Foundation is: Po Box 2716, Fremont, CA 94536-9453
The address of the Historical Glass Museum Foundation is: Po Box 921, Redlands, CA 92373-0281
The address of the Legion Six Historical Foundation Inc is: 7555 Winnetka Ave, Winnetka, CA 91306
The address of the Estanislao 58 Historical Foundation is: C/O 3012 Londonderry Rd, Modesto, CA 95350
The address of the Arab American Historical Foundation is: Po Box 291159, Los Angeles, CA 90029
The address of the Living Legacies Historical Foundation is: 5925 Nagle Avenue, Van Nuys, CA 91401