Tracing Immigrants Origin Taxation
Tax records can substitute for census records to find where families with a selected surname are most concentrated. For example, the Ireland Householders Index helps locate families in the absence of a general census. It indexes two sets of tax records, the Tithe Applotment books (1820-1840) and Griffith's Land Valuation books (1840-1860). Both records identify where heads of households were living.