There are two sources of the dates. One is the Sacramento Daily Union newspaper, which lists the marriage on September 14, 1869, officiated by Rev. I. E. Dwinell [of the Congregational Church]. William M. Brown of Sacramento, to Lottie A. Rogers, of San Francisco. The notice of her death is given as (Feb 8, 1871):
"In Sacramento, Feb. 6th, Lottie A., wife of William M. Brown.
[Funeral from late residence, corner of Seventh and H
streets, on Wednesday, Feb. 8th, at 2 o'clock p.m.
Friends are respectfully invited.]
The second source is:
"Transcribed from Vital Records of Phippsburg, Maine" Sagadahoc County.
Lottie A., w. William, Feb. 6, 1871, a. 24 y. 8 m., in Sacramento, Cal., d. William and Sarah Rogers of P. N.P.4.
This source also records the marriage, but gives only William's address as Sacramento, CA.
The 1870 Business Directory for Sacramento lists William's profession as Machinist.