Collected from articles printed in the Church Advocate
- Women in the Churches of God: the first fifty years
- God Raised Up a Voice -- The Life of G. U. Harn
- Pioneer Preachers: The Hickernell Brothers
- Maria B. Woodworth-Etter and The Churches of God
- To What Extent Was Warner a Winebrennerian?
- Sanctification in the Churches of God 1865 - 1885