Died: 20 Jun 1939
Mary is pictured in the 4th edition of the Friedrich Seidemann Family Tree Book on page 148 with her parents, her husband, their son Clarence as a baby, her siblings, and her nieces and nephews. She is listed on page 162 to 165 with her husband Alvin, their children, their grandchildren, their great grandchildren, their great, great, grandchildren, and their great, great, great grandchildren. Mary is a 4th generation descendant of Friedrich and Rosine Seidemann and her genealogy line is as follows: Friedrich, Christiana, Emma, and Mary.