1) "History of Plymouth" - Hallenbeck family; E. S. Stearns
1906, Kansas State Historical Society Library.
2) "The HOLLENBECKs of New York and Indiana" by Robert D. Kleopfer,
1996.
3) The following individual claims to have a data base containing data on
more than 12,000 descendants of Caspar Jacobse Hallenbeck: Matty Ross
mross@plix.com.
4) Genealogical Contributions, Reprinted From "The Albany
Protocol", Wilhelm Christoph Berkenmeyer's Chronicle of Lutheran
Affairs in New York Colony, 1731 - 1750, by John P. Dern, Hope Farm Press,
Cornwallville, New York, 1981.
Genealogy Books Available
5) "The Hollenbeck Family of America", by Lawrence Hollenbeck, West Union, Illinois 1973.
6) "Ancestors and Descendants of James Hollenbeck (1801-1901), John Cooper (1799-1875), and S. Nels Anderson (1839-1903)" by Twyla J. Stone, May 31, 1989. See article on this genealogy.
7) "Descendants of Mathew R. Letson (1810-1890)" by Twyla J. Stone
8) "A Norweigan-Dutch-French Heritage, Bratt - deHooges - Swartwood - Decker - Schoonmaker - Shoemaker - Hollenbeck - Van Garden - Rosecrans - Roosa" by Twyla J. Stone, November 24, 1990.
9) "Conner/Connor Family History", John K. Conner and His Descendants (1870-1973)" As compiled by Harriet Lawrence Stapleton, Arlington, Va./Swansboro, N. C. and Vera Conner Woody, Connell, Washington, 1973.