Jacob was born about 1830 and was killed by a falling tree in 1866. He is the son of Abraham Harbaugh and Sarah Eicher.
"United States Census, 1860", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MW9H-XWM : 12 December 2017), Jacob Harbaugh, 1860. Location: Plover, Portage, Wisconsin
Find A Grave, database and images (https://www.findagrave.com : accessed 26 February 2019), memorial page for Jacob Harbaugh (1830–2 Feb 1866), Find A Grave Memorial no. 37047787, citing Morrill Cemetery, Arnott, Portage County, Wisconsin, USA ; Maintained by Jonelle (contributor 46903714) .
The cause of death was revealed to me in some e-mail data about 15 years ago.
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Featured National Park champion connections: Jacob is 16 degrees from Theodore Roosevelt, 16 degrees from Stephanus Johannes Paulus Kruger, 15 degrees from George Catlin, 18 degrees from Marjory Douglas, 23 degrees from Sueko Embrey, 17 degrees from George Grinnell, 24 degrees from Anton Kröller, 16 degrees from Stephen Mather, 23 degrees from Kara McKean, 18 degrees from John Muir, 19 degrees from Victoria Hanover and 26 degrees from Charles Young on our single family tree. Login to find your connection.