Find reference to the John Zook you are researching in the book - "Only a Twig" by Lois Ann Zook, believe she is now Mastof, published 1979.Have her web site and e-mail address if you are interested.Find the following about his parents:
Joseph Zook born Feb. 10, 1783, Bern Twp., Berks Co., PA (Now Centre Twp., Berks Co., PA) died March 31, 1868; married Martha Magdalena "Mattie" Yoder, born Nov. 17, 1788, died Oct. 18, 1863, daughter of Christian and Magdalena (Yoder) Yoder.
Joseph and Magdalena lived in Menno Twp., Mifflin Co., PA and are buried at the Locust Grove Mennonite Cemetary.
They had the following children:Mary, Mattie, Fannie, Christian, John, Joseph, Lydia, Jemima, Jonas, and Salome.
The information on John is as follows:
John Zook, Nov. 1, 1818 - Sept 29, 1905; married Fannie Lantz, July 15, 1833 - Jan. 6, 1892, daughter of Samuel and Martha (Plank) Lantz
Moved from Mifflin Co., PA to Logan Co., Ohis in 1850 and in 1885 to Garden City, Cass, Co., MO
Unfortunately, there is no further information on him, his wife, or a listing of the children.
Hope this is helpful.