Census Links is a growing catalog of links to transcriptions of census, tax lists, birth, death, marriage and military records, all freely available to help with your genealogy research.
From Barbara's Genealogy Page
1880 Federal Census index for Troy and surrounding smaller towns
Church records from Troy, Nassau,``Brunswick, Lansingburgh, & Schodack, from Barbara's Genealogy Page.
1800 Census of Greenbush, 1855 Census of Brunswick, 1855 Census of Clinton, (now East Greenbush), 1855 Census of Grafton, 1855 Census of Greenbush (now Rensselaer), 1855 Census of North Greenbush, 1855 Census of Petersburgh