It was early in 1855 that Windsor got its name. Hiram Lewis, a pony express rider for the county, named the community "Windsor," presumably because the area's pastoral beauty reminded him of the grounds surrounding Windsor Castle in his native England. So pleased with the beautiful oak trees and the area's park-like appearance, he stayed on to become its first acting postmaster. On August 31, 1855, a Windsor Post Office was established.

East Windsor was the center of all business enterprise in 1856, and included blacksmith shops, HH. Lafferty's shoe shop, Lindsay & Clark's Dry Goods Store, Mister Jerome's grocery & meat market, two confectionary shops, a saloon, a hotel & barroom, and a boarding house.

In 1872, the railroad came to Windsor. With the railroad, the town moved from East to West, close to the rail line. The advent of the railroad enabled farmers to begin extensive fruit production because of the ready market on the other end of the line.