How to pick up a lost thread re: Ure in NY?

Have a look on www.familysearch.org you might find some thing of help, also if you have other lines in the same family line to work on then do so, some times you have to work around your problems, think laterally, when did your family come to America, have a look at www.castlegarden.org this is a immigration point that Prue dates Ellis Island, the only other things I can suggest is putting messages on genweb and rootsweb. both good sites, Good Luck and Good Hunting