Here are some valid references:
From son's birth record: "New York, Church Records, 1660-1954," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QGR7-11BX : 10 October 2019), Nicklas Link in entry for Andreas Link, 12 Nov 1803; citing Birth, New York, United States, multiple churches, New York.
Marriage of Nicholas and Maria:
"New York, Church Records, 1660-1954," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QGRW-ZJM8 : 10 October 2019), Nickolaus Linck and Maria Culver, 10 Feb 1795; citing Marriage, Columbia, New York, United States, multiple churches, New York.
And this might be a source (no gravestone, unclear what actual record supports this)
Find a Grave, database and images (https://www.findagrave.com : accessed 03 February 2021), memorial page for Nicholas Link (1773–26 Aug 1831), Find a Grave Memorial no. 79888265, citing Saint John's Lutheran Church Cemetery, Manorton, Columbia County, New York, USA ; Maintained by Patrick Arthur Teater Sr. (contributor 47153570) .