Father:
- George Washington Sr. Showalter (*1827 - †1905)
Mother:
- Clarice Graham (*1828 - †1896)
Siblings:
- Nemiah Showalter (*1854 - †1934)
- Hayden Showalter (*1856 - †?)
- Naomi Showalter (*1856 - †1924)
- Joshua E Showalter (*1859 - †1935)
- Nathaniel Showalter (*1861 - †1865)
- George W Jr. Showalter (*1863 - †1942)
- Daniel Showalter (*1865 - †?)
- Drusilla Ann Showalter (*1868 - †?)
- Elsie A Showalter (*1889 - †?)
Wives:
- Catherine M. Troster (*1866 - †?)
- Laura Arminda Walter (*? - †?)
Children:
- Wilbert Showalter (*1886 - †1967)
- Daniel Edwin Showalter (*1888 - †?)
- Benjamin Harrison Showalter (*1890 - †?)
- Fred Showalter (*1895 - †?)
- Inez Pearl Showalter (*1897 - †?)
Branch:
Notes:
a) Catherine M. Troster is mother of: Wilbert Showalter (*1886), Daniel Edwin Showalter (*1888), Benjamin Harrison Showalter (*1890), Fred Showalter (*1895) and Inez Pearl Showalter (*1897)
b) GEDCOM file: Swabian Kastlers.ged