Philadelphia German Congregational Church church was organized in 1912 in Ritzville, Washington, under the leadership of The Rev. John Koch.
At some point, the Philadelphia congregation merged with the Zion congregation, and today the congregation is called Zion Philadelphia United Church of Christ. [See Zion German Congregational Church for additional information.]
The following pastors served the Philadelphia German Congregational Church in Ritzville:
Rev. J. Koch (1912)
Rev. J. Morasch (1912-1926)
Rev. H. Nuetzmann (1926-?)
Rev. Herbert Carl Haemmelmann (1956-1965)
- Eisenach, George John. A History of the German Congregational Churches in the United States (Yankton, SD: Pioneer Press, 1938): 275.
- Herbert Carl Haemmelmann - obituary. Laurel Outlook (8 January 1992).