I was hopeful when I saw the earlier post, but as I need prior to 1840, I was disappointed to find this at the Essex County Clerk's site...perhaps they have the earlier petitions, tho? http://www.essexclerk.com/vault.html Old Naturalization Records. Old Naturalization records from 1840 through 1930 are filed in the County Clerk's Office, if the individual was naturalized in Essex County.� Copies of these records are available for a $5.00 search fee and $1.50 per photocopied page.� Cash, certified check or money order.