1844 Birth:2309 Birth year of 1844 estimated based on age (36 years) in 1850 census enumeration; birth place given as Illinois in same enumeration.

1870 U.S. Census:2318 Martha enumerated in the household of her husband John McCoy in Colusa Township, Colusa County, California as a female, age 25, white, keeping house, born in Illinois.

1880 U.S. Census:2309 Martha enumerated in the household of her husband John McCoy in Freshwater Township, Colusa County, California as a white female, age 36, wife, married, keeping house, born in Illinois, father born in Kentucky, mother born in Kentucky.