Father:
- Isaiah Jacob Showalter (*1847 - †1940)
Mother:
- Martha Agnes Miller (*1850 - †1914)
Siblings:
- Sarah Alice Showalter (*1872 - †1971)
- Ernest Wynter Showalter (*1874 - †1965)
- Ines Jessie Showalter (*1876 - †?)
- Naomi May Showalter (*1879 - †1976)
- Lester Erle Showalter (*1885 - †1902)
Wives:
- Rebecca L. Brooks (*1869 - †1929)
- Nettie Bell Budlong (*1877 - †1957)
Children:
- Mabel E. Showalter (*1891 - †1892)
- Owen Wynter Showalter (*1901 - †1944)
Branch:
Notes:
a) Rebecca L. Brooks is mother of: Mabel E. Showalter (*1891)
b) Nettie Bell Budlong is mother of: Owen Wynter Showalter (*1901)
c) GEDCOM file: Swabian Kastlers.ged