My library does not have these census records, so I have to rent them. I know there are several rolls of microfilm for Rensselaer County, but I only need those that have the town of Nassau on them. I do not want to waste my money on getting the wrong microfilms. I have looked up on the internet to see what towns are on these microfilms, but they just say they are of Rensselaer County. Please help me! Thanks, Jennifer Nordyke