Are you sure they ever married ???

1850 Census
Freetown, Bristol, Mass., 7 Sept. 1850, by: Eben Luther, page 155
Rounseville Macomber, 50, M, Laborer, Mass.
Deborah Rider, 45, F, Mass.
Salome " , 6, F, Mass., attended school.
Next house on page:
Deborah Rider, 70, F, Mass.
Daniel Howland, 68, M, none, Mass.
...
Freetown Vital Records Book -
Macomber A. Rounseville, d. 5 Oct 1854, s. Abiel & Betsy, age about 50y.
Abiel Rounseville & Betsey Ashley married 20 July 1803