Johann Conrad Meisner and Eva Margretha Masson were the parents of Theodorus Meisner. Johann was born in October 1764, probably at South Division, Lunenburg Township, NS. He was christened on 24 October 1764 in St. John's Anglican Church, Lunenburg, Nova Scotia. His parents were Johannes Meisner and Anna Maria Barbara Nass.

Johann married Eva Margueritte Masson on 4 November 1788, in Zion Lutheran Church, Lunenburg, NS. She was born on 7 December 1771 in Northwest Range, Lunenburg Township, NS. Her parents were Jean Frederick Masson and Maria Marguerite Guenon.

The children of John Conrad Meisner and Eva Margueritte (or Margretha) Masson were:

i Johannes Meisner - married Anna Maria Wentzel and 2nd, Elizabeth Mosher
ii Theodorus Meisner
iii Maria Barbara Meisner - married Jacob Baker
iv Johann Casper Meisner - married Sophia Catherina Wentzel
v Johann Peter Meisner - married Sophia Elizabeth Beck
vi Anna Maria Meisner - married John Jacob Hirtle
vii Margaret Gertrude (Gertraud) Meisner - married John Jacob Hirtle
viii Johannes Conrad Meisner - married Helen Elizabeth Schauffelburg
ix Anna Christianna (Christina) Meisner - married Jacob Christain Simon
x Johann Friedrich Meisner was born on 3 Jan 1809 in Lunenburg, Nova Scotia. He was christened on 27 Jan 1809 in Zion Lutheran Church, Lunenburg, Nova Scotia.
xi Catherine Margarethe (Margaret) Meisner - married Johann Jacob Conrad