Several descendants of New Jersey Allen's believed to be related to Ananias Allen have tested in the Allen DNA project. See http://www.familytreedna.com/public/allan/http://www.familytreedna.com/public/allan/New Jersey Allen's group is listed on the results chart as Group I, subgroup e.
I am from Isaac Allen b. 1770 NJ d. 1849 in Butler Co. OH. I don't know how my paper trail of genealogy connects up withmy DNA matches yet.(Kit 109360)
Kit #8241 (in our group) is from Joshua Barnes Allen (1728-1810) son of William Allen(1699-1756). And Kit #95964 is not certain of their connection, but believes it is through Gislem Gershom Allen (1734-1810ish) whose father was Ananias (1699-1757).
If you were able to have your DNA tested, you could determine better whether you fit into this family in NJ.