Thanks to the microfilms that I have been able to rent from the Family History Library of the Church of Latter Day Saints in Salt Lake City, I have been able to trace the family of my great-grandfather back several generations. Here is a brief summary:

Great grandfather (1 of 1)
Joseph Folzenlogel (born March 14, 1826)

Great-great grandparents (2 of 2)
Jacques Nicholas Folzenlogel and Marie Anne Grussenmeyer (m. January 18,1813)

Great-great-great grandparents (4 of 4)
John Michael Folzenlogel and Ann Marie Juchs (m. July 14, 1786)
Casper Grussenmeyer and Marie Anne Hollander (m. Feb. 9, 1778)

Great-great-great-great grandparents (8 of 8)
Joseph Wohlzenhogel and Margaret Acker (m. ?)
John George Juchs and Anna Marie Phohl (m. September 14, 1750)
George Grussenmeyer and Rosina Ludwig (m. November 23, 1744)
Valentine Hollander and Marie Anne Siffert (m. ?)

Great-great-great-great-great grandparents (10 of 16)
Michael Jux and Catherine Seyler, widow from Luxemburg (m. November 17,1714)
Joseph Pfohl and Anna Marie Alt (m. July 4, 1715)
Peter Grussenmeyer and Margaret Unterländer (m. January 19, 1722)
George Ludwig and Christina Schön (m. February 17, 1716)
John Paul Siffert and Rosina Grauel (m. ?)

Great-great-great-great-great-great grandparents (13 of 32)
Jacob Grusenmeyer and Elizabeth Mauer (m. ?)
Matthew Unterländer and ? (m. ?)
Philip Jacob Jux and Barbara Mayer (m. ?)
Peter Pfohl and Ursula Jobb (m. ?)
Casper Alt and Anna Maria Seyler (m. ?)
John Ludwig and Maria Troutman (m. ?)
John Peter Schön and Christina Erb (m. March 30, 1693)

Great-great-great-great-great-great-great grandparents (2 of 64)
Matthew Erb and Agatha Kaller (m. ?)