• His obituary confirms that his family traveled in 1849 and continued on to California after arriving in Utah. 

Silas Richards Company (1849)

• Age at Departure: 51
• Head of Household

Sources

• 1860 California Census, Calaveras County.
• "Died," Red Bluff Independent, 16 February 1864, 2.
• Journal History of The Church of Jesus Christ of Latter-day Saints, Supplement after 31 December 1849, 5C.
• Silas Richards company, 1849 September.
• Silas Richards letter to Brigham Young, 24 August 1849.