1837 Birth:3055,2916 Birth date of 17 May 1837 taken from 1917 tombstone in Riverside Protestant Cemetery, Iowa Township, Washington County, Iowa; birth place of Michigan taken from 1850 and subsequent census enumerations.

1867 Marriage:2914 Asa Briggs married Minerva Randell in Johnson County, Iowa on 12 December 1867.

1870 U.S. Census:2916
Johnson County, Iowa (Washington Township, Frank Pierce Post Office)
Enumerated 5 July 1870
Asa Briggs8843, male, white, farm laborer, real estate value $400, personal property value $300, born in Ohio, male citizen over the age of 21
Minerva E. •• 32, female, white, keeping house, born in Michigan
Julius •• 15, male, white, born in Ohio << son of Asa and first wife Margaret
Hannah Randell, mother of Minerva, enumerated in immediately preceding household. Eve Fry Patterson and her son Bruce, both from Licking County, Ohio, were enumerated as the third following household.

1880 U.S. Census:2917
Johnson County, Iowa (Washington Township)
Enumerated 17 & 18 June 1880
Asa Briggs •• white, male, 53, married, farmer, born in Ohio, father born in Massachusetts, mother born in New York [!]
Minerva •• white, female, 42, wife, married, keeping house, born in Michigan, father born in Vermont, mother born in New York

1900 U.S. Census:2915
Washington County, Iowa (Iowa Township)
Enumerated 1 June 1900
Minerva Briggs •• head, white, female, born November 1837, age 62, mother of one child and that child still living, born in Michigan, father born in Vermont, mother born in New York, seamstress, can read, write, and speak English, owns home free of mortgage
Minerva was living alone as head of household. Others enumerated nearby do not appear to be related.

1910 U.S. Census:2919
Washington County, Iowa (Iowa Township)
Enumerated 15 April 1910
Minerva E. Briggs •• head, female, white, 74, widowed, mother of one child, born in Michigan, father born in Vermont, mother born in New York, can speak English, no occupation, can read and write, owns home free of mortgage
Minerva was living alone as head of household. Others enumerated nearby do not appear to be related.

1917 Tombstone:3055 Riverside Protestant Cemetery, Iowa Township, Washington County, Iowa.
Minerva Briggs
17 May 1917
10 November 1837