1824 Birth:2904 Birth year 0f 1824 estimated based on age of 36 years in the 1850 census enumeration; birth place of Indiana taken from same source.

1852 Marriage:2937 Harrison Briggs married Cordelia Sooney in Johnson County, Iowa, on 28 October 1853.

1860 U.S. Census:2904
Johnson County, Iowa (Washington Township, Frank Pierce Post Office)
Enumerated 29 June 1860
Harrison Briggs •• 38, male, farmer, real estate value $1,800, personal property value $300, born in Ohio
Cordelia •• 36, female, born in Indiana
William •• 5, male, born in Iowa
Arthur •• 4, male, born in Iowa
Elizabeth •• 2, female, born in Iowa
John •• 1, male, born in Iowa

1870 U.S. Census:2905
Johnson County, Iowa (Washington Township, Frank Pierce Post Office)
Enumerated 5 July 1870
Harrison Briggs •• 48, male, white, farmer, real estate value $5,300, person property value $2,000, born in Ohio, male citizen over the age of 21
Cordelia •• 46, female, white, keeping house, born in Indiana
William •• 16, male, white, born in Iowa, attended school within the year
Arthur •• 14, male, white, born in Iowa, attended school within the year
Elizabeth •• 12, female, white, born in Iowa, attended school within the year
John •• 10, male, white, born in Iowa, attended school within the year
Joseph •• 8, male, white, born in Iowa, attended school within the year
Frank •• 4, white, born in Iowa

1880 U.S. Census:2938
Custer County, Colorado (Rosita)
Enumerated 18 June 1880
Cordelia Briggs •• white, female, 54, mother, widowed, can read and write, born in Indiana, father born in Kentucky, mother born in Kentucky
William •• white, male, 26, son, single, miner, can read and write, born in Iowa, father born in Ohio
Arthur •• white, male, 24, son, single, miner, can read and write, born in Iowa, father born in Ohio
Elizabeth •• white, female, 22, daughter, single, can read and write, born in Iowa, father born in Ohio
John •• white, male, 21, son, single, can read and write, born in Iowa, father born in Ohio
Joseph •• white, male, 19, son, single, can read and write, born in Iowa, father born in Ohio
Frank •• white, male, 13, son, attended school within the year, can read and write, born in Iowa, father born in Ohio
Alex Swope •• white, male, 23, single, miner, can read and write, born in Kentucky, father born in Kentucky, mother born in Kentucky

Death between 1880 and 1900: Cordelia not located in the 1900 U.S. census.

Descendants

Sons William and Arthur were enumerated as miners in Rosita, Custer County, Colorado, in the 1880, 1900, 1910, and 1920 enumerations. They resided together and apparently never married.

Sons John and Joseph were in a mining accident described in the 8 March 1883 issue of The Sierra Journal and Rosita Index, 1881-1886 on p. 3, column 3 as: "A Sad Accident. A terrible accident occurred in the Midnight mine shaft just east of Querida, early this morning, which resulted in John and Joe Briggs being blown up. John is torn almost to pieces, and, it is thought, cannot live but a few hours, while Joe is seriously hurt, the telephone states. The accident was occasioned thus: The boys put in a heavy shot, last evening, which they supposed entirely exploded, but it would seem that the explosion was only partial. This morning they went down the shaft and commenced driiling out the hole; the sparks from their drill exploded the rest, and major portion, of the charge with the result indicated. LATER. As we go to press the telephone announces the death of John Briggs."

John is buried in Rosita Cemetery, Custer County, Colorado.