Tomás Bustamante

From Lawman: The Life and Times of Harry Morse, 1835-1912 by John Boessenecker:

https://books.google.pl/books?id=nC2HHRJcQJAC&pg=PA354&lpg=PA354&dq...

Although Morse's information about Procopio's ancestry has been dismissed by most modern writers ("I might add that Procopio was a nephew of the much dreaded and notorious Joaquin Murrieta, Procopio's mother being Joaquin's sister" [7]), research by the late Frank F. Latta has fully confirmed it. Procopio (then a popular Hispanic name, after the Byzantine historian, Procopius) was born Tomas Procopio Bustamante in Sonora, Mexico, in 1842, the son of Vicenta Murrieta, Joaquin's older sister, and Tomas Bustamante, a stage driver on the route between Ures and Hermosillo. In 1852, a band of Yaqui Indians attacked his stage and killed the elder Bustamante.

By this time, Joaquin Murrieta had joined the gold rush to California. he was not yet a bandit but rather a mestenero, catching wild horses in the broad San Joaquin Valley and driving them to Mexico for sale. After one such visit home, he brought his grieving sister and 10-year-old Procopio back to california with him. Joaquin reputedly owned a small rancho in what is now Niles Canyon in southern Alameda County. Here he brought his sister, and according to Murrieta family legend (which conflicts with all reliable accounts) it was in this adobe that Procopio and his mother buried Joaquin after he was allegedly wounded by lawmen in 1853.[8]