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Facts and Events
References
- David Logan, in Crawford, Pennsylvania, United States. 1850 U.S. Census Population Schedule. (Washington D.C.: National Archives and Records Administration Publication M432).
- David Logan, in Crawford, Pennsylvania, United States. 1860 U.S. Census Population Schedule. (Washington D.C.: National Archives and Records Administration Publication M693).
- David Logan, in Crawford, Pennsylvania, United States. 1870 U.S. Census Population Schedule.
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