One of the soldiers who arrived in Stevenson's Regiment from New York. He was part of the leadership that sought to incorporate Sonoma as a city, which request was granted by the Territorial Legislature 4 Apr 1850.

Here he is in 1850:
1850 Sonoma Co, California
Dwelling 126, Family 127
Cameron John 40 M Merchant Massachusetts
Cameron Hannah 30 F Massachusetts
Cameron M.R.E. 2 F California
Cameron A.S. 1 M California

He became one of Sonoma's mayors