Sources for "Joseph McNitt and His
Wives Marietta Whitney and Achsah
- Census of Thompson Township, Seneca County, OH, 1840-1880 (including agriculture schedules for 1870).
- Census of Pittsford Township, Hillsdale County, MI, 1900.
- Combination Atlas Map of Seneca County, Ohio. Philadelphia: D.J. Stewart, 1874, p. X.
- Gravestone of Achsah Sloat McNitt, East Hill Cemetery, Osseo, MI.
- Gravestone of Joseph McNitt, Bishop Seybert Cemetery, Thompson Township, Seneca County, OH.
- Gravestone of Marietta McNitt, Fulton Street Cemetery, Grand Rapids, MI.
- Land Records of Seneca County, OH.
- Marriage Records of Seneca County, OH.
- Seneca Advertiser (Tiffin, OH), Jan. 1, 1880, obituary of Joseph McNitt.
- Tiffin Tribune (Tiffin, OH), Jan. 1, 1880, obituary of Joseph McNitt.