Find a Grave, database and images (https://www.findagrave.com/memorial/66701036/john-sunderlin : accessed 02 October 2021), memorial page for John Sunderlin (12 Jul 1783–11 Mar 1862), Find a Grave Memorial ID 66701036, citing Middletown Springs Cemetery, Middletown Springs, Rutland County, Vermont, USA ; Maintained by Stephen Payne (contributor 47327291) .
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Featured National Park champion connections: John is 12 degrees from Theodore Roosevelt, 17 degrees from Stephanus Johannes Paulus Kruger, 13 degrees from George Catlin, 16 degrees from Marjory Douglas, 24 degrees from Sueko Embrey, 11 degrees from George Grinnell, 24 degrees from Anton Kröller, 14 degrees from Stephen Mather, 20 degrees from Kara McKean, 15 degrees from John Muir, 15 degrees from Victoria Hanover and 25 degrees from Charles Young on our single family tree. Login to find your connection.
If the findagrave reference is correct this is the father of Ozro Sunderland (1809-1884). However Ozro's findagrave profile lists a different wife of John as does John's.
I'll go ahead with the connection if you have no objection.
Stay well, Jennifer