Andersons d. NYC 1841-1868 (A, Abram, Bessie, John Herbert, Ethel)

I am the treasurer of the registered landmark New York City Marble Cemetery (www.nycmc.org). We are looking for living descendents of vault owners in order to keep our ownership records updated and to make sure descendents are aware of this still usable asset. Any help you can give us would be most appreciated.