You might try the county clerk's office to see if these marriage records have any more detail?
Virginia, Marriages, 1785-1940
Citing this Record: "Virginia, Marriages, 1785-1940," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XRWV-BZR), William Randolph and Fanny Brown, 03 Apr 1794; citing Princess Anne, Virginia, reference p15; FHL microfilm 33213.
Name: William Randolph
Spouse: Fanny Brown
Marriage: 03 Apr 1794 Princess Anne, VA
ID: p15
Citing this Record: "Virginia, Marriages, 1785-1940," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XRWV-N4R), William Lawrence and Jennet Randolph, 07 Mar 1828; citing Princess Anne, Virginia, reference P95; FHL microfilm 33213.
Name: William Lawrence
Spouse: Jennet Randolph
Marriage: 07 Mar 1828 Princess Anne, VA
ID: P95