Diffenderffer, Frank Ried The German Exodus to England in 1709: (massen-auswanderung der Pfälzer) : Prepared at the Request of the Pennsylvania-German Society

Diffenderffer, Frank Ried The German Immigration Into Pennsylvania Through the Port of Philadelphia From 1700 to 1775: Part II: The Redemptioners

Ried, Diffenderffer Frank The Early Settlement and Population of Lancaster County and City

Diffenderffer, Frank Ried The German Immigration Into Pennsylvania Through the Port of Philadelphia From 1700 to 1775: Part II: The Redemptioners