In FINDAGRAVE.com there is a Peter Smith that was married to Ann Dunn but the dates are different.
Peter Smith, born 1830, died 1895 and buried in Saint Mary's Cemetery at Jewell, Oneida County, NY
Ann Dunn Smith, born 1830, died 1898, buried in Saint Mary's Cemetery at Jewell, Oneida County, NY
An associated child is:
James J Smith, born 29 May 1862, died 16 Apr 1939, buried in Saint Joseph's Cemetery at Albion, Orleans County, NY
It lists James's wife as Elizabeth A McEntee Smith, born 1869 in NYm died 28 Mar 1953, buried in Saint Joseph's Cemetery at Albion, Orleans County, NY
You might take a look at this info in FINDAGRAVE.com and see if it helps in your research.
Good Luck