Gallatin is one of the five towns of the Roe Jan region and is an important hamlet in the History of the Roe Jan Region. Because of its location on the Roeliff Jansen Kill , Gallatinville was the largest settlement in the early Roe Jan towns, with a railroad station, a hotel, stores, a grist mill, a plaster mill, two blacksmith shops, a post office and about a dozen houses by the 19th century.
East of Bridge & East of Silvernails, a marker placed by the state of New York in 1932 reads as follows: “Jansen Kill Checomingo Kill First named after Roeliff Jansen, overseer of the Orphan Chamber of the Checomingo Indian Tribe.”
The town is named after Abraham Alfonse Albert Gallatin, born de Gallatin (January 29, 1761 – August 12, 1849) He was a Genevan-American politician, diplomat, ethnologist and linguist. He is known for being the founder of New York University and for serving in the Democratic-Republican Party at various federal elective and appointed positions across four decades. He represented Pennsylvania in the Senate and the House of Representatives before becoming the longest-tenured United States Secretary of the Treasury and serving as a high-ranking diplomat.