I looked at the original message back from 2008 and I found out more info, thats why I was asking about your relatives. Here is my lineage that I have found so far.
Great Great Grand parents - William McAllister and Mary McCarron
Great Grand parents - Henry McAllister and Mary Anne Downs (1st), Margaret Russell (2nd)
Grandparents - William McAllister aka James McDonald and Aurore Leblanc.
Henry lived in Brooklyn. His children are Marjorie, Mary, Sally and William. Marjorie and Sally had no children. I met a 2nd cousin through Mary's line. Marjorie and Mary stayed in Brooklyn. Marjorie died about 1958. Henry's second marriage to Margaret Russell, looks like the children stayed in Brooklyn and possible their children. The whole McAllister line is Catholic. One of these years I might be able to make it to the municipal archives in Manhattan to do more research and try to find documents on all these people. I found someone that has Henry and Margaret in their tree, sent message but no response.
Thanks, Bill Palmer