DeMotts of Bergen Co, NJ

Looking for info on the family of Margaret (Maggie) DeMott b.~1859 in NJ. She married Westervelt Eckerson and they had kids: Sarah (Sadie), Abram (Abraham), Raymond, and Maud, per a US Census.
I found birth records for a few of the kids in Carlstadt, NJ, but I can't find the marriage between the parents. Any help would be appreciated.