Alexander Rea purchased 28.1 acres (11.4 ha) in the town in 1802 for $56.20 and founded the village of Alexander. The next year he laid out a road, now Walnut Street and Route 98, north of the settlement. The town of Alexander was incorporated in 1812, from a part of the town of Batavia.
The town includes the Alexander Classical School, listed on the National Register of Historic Places.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikimedia Commons (5), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps and U.S. Census counts (via Wikipedia). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.