I think you're looking for R. S. DeForrest.
In 1850 a R. S. Deforest was living in Nevada City, Yuba Co., CA. He was a miner along with the other men living with him.
In 1860 a RAnsford S. Deforest and family were living in Boon, Warrick Co., IN.
Ransford S. Deforest, b. IN, 34, farmer, $4,000 real estate and $1,000 personal property.
Mary, wife, b. IN, 31.
Florance M., b. IN, 2.
Their neighbors were Joseph and Mary Deforest.
In 1870 a Ruben Deforrest and family were living in Fisher, Fremont Co., IA.
Ruben Deforrest, b. IN, 44, farmer, $11,000 real property & $6,000 personal property.
Mary, wife, b. IN, 41.
Florence, b. IN, 12.
Elmer, b. IN, 9.
Clara, b. IN, 5.
Joseph Asams, b. IN, 22, works on farm.
George Mears, b. IN, 17, housework.
Sarah Mason, b. IN, 58, at home.
In 1880 a Ransford De Forest was living with him family in San Jose, Santa Clara Co., CA.
Ransford De Forest, b. IN, 53, at home, lung disease.
Mary, wife, b. IN, 51.
Binnie, dau, b. IN, 22.
Elmer, b. IN, 19.
Clara, b. IN, 15.
Joseph, b. IA, 9.
In 1900 most of the family were living in Fremont, Santa Clara Co., CA.
RAnsford S. Deforrest, b. IN, 73, Sept. 1826, fruit grower, marr 45 yrs.
Mary B., wife, b. IN Sept 1839.
Belinda F., b. IN May 1858, single, elocutionist.
Joseph G., b. IA Sept. 1870, single.
In 1910 some of the family was living in San Francisco Assembly Dist. 37, San Francisco Co., CA.
Mary B. Deforest, widow, b. IN, 80, own income.
Binney F., b. IN, 51, single, teacher elocution.
Dora, b. IN, 45, single, nurse working out.
I didn't find Ransford's death info. Contact the Santa Clara County's Recorder's office.
I didn't find Mary's death info. Contact the San Francisco County Recorder's office. Successful Searching!