Nelson

Nelson is a town in Madison County, New York, United States. The population was 1,980 at the 2010 census. It is home to scenic Nelson Swamp and Stoney Pond State Forest, and is located between Morrisville and Cazenovia.

http://en.wikipedia.org/wiki/Nelson,_New_York

Old State Road, 1890s Topos

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South of Nelson is Old State Road, however it's not clear to me that US 20's alignment has changed significantly since the 1800s from looking at these topos, even though they did twin the roads in the 1950s.