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• Fr. John Kenny, 1875 [First Groton Pastor]
• Fr. Fred Rauber, 1875/6-July 16, 1876
• Fr. Patrick M. McManus, July 16, 1876- [upon death]
• Bp. Thomas F. Hickey, 1894?-Mar. 1895
• Fr. John McGrath
• Fr. John McMahon, -Apr. 27, 1905/6
• Fr. John B. Doran, Apr. 27, 1905/6-
• Fr. Hugh Crowley, -1923
• Fr. Thomas M. O'Connor, 1923-1931 [upon retirement, poor health]
• Fr. John M. Sellinger, 1931-1940
• Fr. William E. Hayes, 1940-1950
• Fr. Thomas K. Cleary, 1950-1962 [Dryden-Freeville Pastor]

St. Patrick's church in McLean was built at a cost of $1,000 in 1851, and served as a mission of Immaculate Conception of Ithaca and, since 1873, of St. Anthony in Groton. The land upon which the church was constructed was donated by Michael O'Byrne, who also helped with laying the foundation. The community was never large, having roughly 200 parishioners at its peak. In 1915, St. Patrick underwent renovations which involved lowering the ceiling and adding stained glass windows to the structure. The floor of the church collapsed during the 1950 Easter season, but was quickly repaired thanks to assistance from the Cortland Knights of Columbus. Eventually it was decided that this small mission and its aging building were no longer necessary. St. Patrick's was amalgmated into Holy Cross, Dryden in 1962. The church building still exists as a private residence.