Jackson, Ron V., Accelerated Indexing Systems, comp., Maryland Census, 1772-1890 (Online publication - Provo, UT, USA: The Generations Network, Inc., 1999.Original data - Compiled and digitized by Mr. Jackson and AIS from microfilmed schedules of the U.S.

Jackson, Ron V., Accelerated Indexing Systems, com. 

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  • Source/Citation: {Jackson, Ron V., Accelerated Indexing Systems, com}