He might be in Manning Ave Cemetery formerly Bloomingdale Cemetery. Mr David Henry told me the Hennions are there and were the Trustees of that Cemetery. He said the last surviving Hennion trustee was Harry Hennion who died in the early 1980 and he had a daughter Dorothy. Mr Henry was very helpful to me. He has posted information about the cemetery and plot owners on http://www.rootsweb.com/~njpchsgc/http://www.rootsweb.com/~njpchsgc/ Passaic County Historical Society and Genealogy Club Hope this will help.