Your Census Research Companion Census records are a key source for tracing your family tree and this handy collection puts census-related resources, tips, lists and need-to-know facts at your fingertips! Use The Genealogist"s Census Pocket Reference to find websites with census records and date questions from each U.S. census 1790 to 1940 maps of the territory covered in each federal census a key to common abbreviations instructions to enumerators population and immigration trends explanations of special schedules state and international census resources and so much more! Stash this indispensable book in your computer case, tote bag or yes, your pocket and take it with you whenever you research.