The 1850 census shows them married with children. Probably married c 1844.
''1850 Census''
Name:
Margt A Carter
Age:
26
Birth Year:
abt 1824
Birthplace:
Ohio
Home in 1850:
Monroe, Guernsey, Ohio, USA
Gender:
Female
Family Number:
442
Household Members:
Name
Age
Abraham C Carter
28
Margt A Carter
26
Melvin Carter
5
Sarah M Carter
2
David Taylor
19
Source Citation
Year: 1850; Census Place: Monroe, Guernsey, Ohio; Roll: M432_684; Page: 414B; Image: 586