|Thomas Leo Dempsey|
|Lawrence Dempsey arrived at the Port of Philadelphia in April of 1850 on the Ship Monongahela. He is descended from the Dempseys of Wexford County, in the southeast of Ireland. After his marriage to Margaret Campbell in Allegheny, Pennsylvania, he moved west and eventually assembled a farm of 240 acres in Walton, Illinois. His great grandson, John "Jack" Dempsey currently resides on a portion of that farm.|
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