Did he muster into the Marine Corps on 19 October 1810?
Is this he (father = "Preserved Porter"): https://familysearch.org/pal:/MM9.1.1/F746-D9F
https://familysearch.org/pal:/MM9.3.1/TH-1942-23409-34926-86?cc=1916228
https://familysearch.org/pal:/MM9.1.1/M4DF-9JN
https://familysearch.org/pal:/MM9.3.1/TH-266-11817-115751-91?cc=1401638
If he died in Portland, Dodge County, WI: http://records.ancestry.com/isaac_porter_records.ashx?pid=105254204
...then why is he buried in Marshall, Dane County, WI: http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=porter&GSfn=isaac&GSbyrel=all&GSdyrel=all&GSst=51&GScntry=4&GSob=n&GRid=14774226&df=all&
See also:
"Wisconsin State Census, 1855", , FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MMM2-FB6 : Fri Oct 06 08:47:44 UTC 2023), Entry for Isaac Porter, 1855. Two males and two Females.
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