Courtesy lookup - not my family.
Here is their marriage from the Stafford County GenWeb page. Joseph was a widower, and Emma was single:
POB=place of birth
POR=place of residence
POM=place of marriage
STMR=Stafford marriage record
JONES, J.J. s/o Elias Jones age 55 W farmer POB Fauquier Co POR Stafford Co & HERNDON, E.; d/o B.& M.Herndon age 30 S POB POR Stafford Co; POM Stafford 18 Jul 1881 minister J.T.Smith STMR
Hope this helps!