Family Donald Koellmel / Mary Elizabeth Bittner (F4989): Our Family History

UPDATED: 25 July 2026

Family Chart | PDF

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John George Bittner

(1904-1982)

Helen Elizabeth Welch

(1908-2005)

Joseph John Bittner

(1935-2021)

George Mathias Bittner

John Francis Bittner

(1940-2020)

Mary Elizabeth Bittner

Donald Koellmel