Johann Friedrich Dreier was an arbeitsmann or workman from Mamerow, Germany who married Christina Catharina Sophia Martz. Christina was born on February 6, 1780 in Klaber, Germany and died in Mamerow on October 27, 1822.

They had at least two daughters:

  1. Sophia Elisabeth Hanna Dorothea Knaack born December 15, 1806 in Mamerow - She was the mother of Sophia Wilhelmina Fredericka  Adolphine "Rika" Heiden.
     

  2. Maria Dorothea Carolina "Dora" Dreier who married Heinrich Roggelein (1825-1868)

Johann was the grandfather of Sophia Wilhelmina Fredericka  Adolphine "Rika" Heiden.
 

Mary Lou Opfermann, Agnes Heiden, Karen Wheaton, Joann Kimlin & Dianne Houpt

Gail Baker, Drew Berns, Madelyn Berns, Veronica Berns, Wilma Bicking, Myrna Bishop, Marilyn Burgard, Bertha Drake, Kay Dushane, Elaine Eichbauer, Monita Fergus, Harold Heiden, Mildred Heiden, Norma Heiden, Ronald Edward Heiden, Wm Frank and Helen Heiden, Pat Klass, Helma Nickel, Peter Opfermann, Caroline Rambow, Jane Root, Pastor Don Thomas, Marie & Brick Tommelein, Gwen White, Jeff Wittman and Joyce Wittman.