You may have seen in local news, the possibility of an old cemetery site in Middleton Township, not far from the Levis Commons area of Perrysburg. (13abc's report is HERE.) According to Fr. Lawrence Mossing's history of diocese, that would be the mission / parish of St. Mary, Mother of Sorrows church in Roachton, founded by German farmers who had been traveling to St. Joseph's in Maumee. The congregation existed from 1856 until 1881, often served as a mission by St. Rose in Perrysburg. (You can read more details in Volume IV of the Diocese history, pp. 184 - 186.)
UPDATE: More information and a photo of the cemetery HERE.