Here.

An excerpt:

On April 27, 1863, nearly five months after President Abraham Lincoln issued the Emancipation Proclamation, California abolished its system of forced apprenticeship for American Indians. Under the apprenticeship provisions of the state’s Act for the Government and Protection of Indians, several thousand California Indians, mostly children, had suffered kidnapping, sale and involuntary servitude for over a decade.

Also:

Sources: “An Act for the Government and Protection of Indians, April 22, 1850”; Michael Magliari, “Free Soil, Unfree Labor,” Pacific Historical Review 73 (August 2004); “Minority Report of the Special Joint Committee on the Mendocino War,” in Appendix to the Journals of the California Senate (1860); “An Act Amendatory of an Act entitled ‘An Act for the Government and Protection of Indians,’ April 16, 1860”; Mendocino Herald, April 10, 1863; George Hanson to William P. Dole, July 15, 1861, Office of Indian Affairs, Letters Received; Sacramento Union, May 5 – 12, 1862; Brendan C. Lindsay, “Murder State: California’s Native American Genocide, 1846 – 1873”; Elijah Steele to William P. Dole, Oct. 30, 1863, Office of Indian Affairs, Letters Received; Report of the Commissioner for Indian Affairs, 1867; Alta California, June 8, 1874.