Bingley, G. A., Frank, K. F. v., Marye, W. B., & Slagle, A. R. (1967). The Slagle family in America: Descended from the Schlegel von Gottleben family of Germany. [Baltimore, Md.?]: A. Russell Slagle.

Bingley, George Althoff, Karl Friedrich von Frank, William Bose Marye, and A. Russell Slagle. The Slagle Family in America: Descended From the Schlegel Von Gottleben Family of Germany. [Baltimore, Md.?]: A. Russell Slagle, 1967.

Bingley, George Althoff, Karl Friedrich von Frank, William Bose Marye, and A. Russell Slagle. The Slagle Family in America: Descended From the Schlegel Von Gottleben Family of Germany. [Baltimore, Md.?]: A. Russell Slagle, 1967.