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November 1, 1977
Philadelphia, PA, United States
The Historical Society of Pennsylvania
People: Heinrich Dubs, Heinrich Dups, Veronica Dups and 2 others.
1986
Zürich, Zürich District, ZH, Switzerland
Contains history of Dup/Dub Family immigration and settlement in Lebanon County, PA.
People: Anna Maria Dubs, Heinrich Dubs, Johannes Dubs and 4 others.