Frenchtown, Seneca County, OhioFrenchtown is an unincorporated community in Seneca County, in the U.S. state of Ohio.HistoryThe first settlement at the site that would become known as "Frenchtown" in the 20th century was created in the 1840s and 1850s by French-speaking immigrants largely from Belgium and Luxembourg. The Catholic immigrants of the area built a log chapel dedicated to St. Nicholas, which was later replaced by a two-story school house possessed the nearest railroad station; at that time, the church was served by the New Riegel post office. After the church was placed within the boundaries of the new post office in Adrian, it became known as "St. Nicholas, Adrian." Sacramental records suggest that the first written reference to "St. Nicholas, Frenchtown" was made in the late 1910s.Landmarks St. Nicholas Catholic Church, dedicated in 1890 St. Nicholas Catholic Cemetery, with over 1,000 marked graves The former rectory, a two-story, brick home to the west of the church The former convent, across the street from the rectory