Oliver Cromwell (O.C.) Applegate Jr. was the grandson of Lindsay Applegate, one of the founders of the South Road of the Oregon
Trail. His father, O.C. Applegate, Sr. was a captain in the Oregon Milita and served as a scout and interpreter during the
Modoc War of 1872-3. He was also appointed as a U.S. Commissioner in 1873 and then Klamath Indian Agent in 1898. His son,
O.C. Applegate, Jr. came to San Francisco in 1915, where he became a resident and remained for the duration of his life, except
for time he spent in the army during World War I.