You have Rebecca with her parents in the 1860 Census. She married James Madison Collins in 1877:
"Virginia Marriages, 1785-1940", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XRFK-5V5 : 29 January 2020), James M. Collins and Rebecca J Rountrey, Nansemond County 4 Jan 1877.
They were counted twice in 1880:
"United States Census, 1880," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MC52-1DT : 15 January 2022), Rebecca Collins in household of James M. Collins, Nansemond, Virginia, United States; citing enumeration district , sheet , NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm.
"United States Census, 1880," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MC6T-864 : 14 January 2022), Rebecca Collins in household of James M. Collins, Haslett Township, Gates, North Carolina, United States; citing enumeration district , sheet , NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm.
In 1900 they had four sons at home, Alexander, Robert, James, and Herbert:
"United States Census, 1900", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MSYN-33K : 7 January 2022), Rebecca C Collins in entry for James M Collins, 1900.
James was listed as a widower in 1910, with sons James and Herbert still at home:
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLSN-7ZL : accessed 28 February 2022), James M Collins, Haslett, Gates, North Carolina, United States; citing enumeration district (ED) ED 36, sheet 10A, family 159, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1101; FHL microfilm 1,375,114.