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The Accelerated Indexing System (AIS) Index to the 1850 Census refers to millions of persons found in the Population Schedules for that year. In addition, this CD-ROM (produced by Ancestry.com) indexes various federal non-population schedules (pensioners lists, veterans schedules, slaves schedules, and mortality schedules), as well as state and other censuses. All records are quickly and easily searched with AncestryViewT technology.

This CD indexes the population of five states/territories, referring to 960,000 records in all. The following localities (and record counts) are included: Illinois (252,228), Indiana (265,340), Michigan (249,870), Minnesota (17,942), and Wisconsin (170,560).

Minimum System Requirements: 486/33 processor (Pentium recommended), Windows 95 or better, 16MB RAM, 15MB hard disk space, 2X CD-ROM, 800x600 monitor resolution, 16-bit color or higher.