As the Town of Windsor grew, Tecumseh began to experience new blood when the overflow of immigrants coming to the city began to settle in the peripheral regions as well. Indicative of the change was the mix-up created by the introduction of the tomato to the area of Tecumseh. Many of the English residents of the community refused to touch the suspicious red vegetable believing it to be a ″Love Potion″ concocted by the amorous Frenchmen. The first post office was located on the northeast corner of Tecumseh and Lesperance Roads and was operated by a Mr. Christie. Some of the first businesses in Tecumseh included a lumber mill operated by J.B.Cada; a grocery store operated by Arthur Cecile; a cheese factory on Banwell Road operated by Joseph Breault; a bakery owned by John Dugell; three butcher shops; a canning factory and a brewery eventually closed under Carling Brewery. In 1921 it was felt that Tecumseh was not getting its fair share of improvements in proportion to the taxes paid to the municipality of Sandwich East. A group of people headed by Malcolm Clapp petitioned the legislature to separate from the township and incorporate as the Town of Tecumseh with a population of 978. Dr. Paul Poisson was appointed as the first mayor of the town. The real growth in Tecumseh occurred in 1931 with the establishment of the Green Giant Factory as Fine Foods of Canada. Green Giant (now Bonduelle) is still located in Tecumseh and continues to employ full and part-time workers.