John Lawrence Schoolcraft was a U.S. Representative from New York.
John L. Schoolcraft, Congressman from New York
John Schoolcraft House, aka "Schoolcraft Cultural Center."
John I. Slingerland was a New York farmer, businessman, and politician. He served terms in both the New York State Assembly and the United States House of Representatives.
From Part I of 1897's Landmarks of Albany County
John I. Slingerland House, located in the Slingerlands Historic District
Slingerland Family Memorial Marker at the Slingerland Family Vault