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Male Donald Wilbur Prohaska Click to view Donald Wilbur Prohaska in the family tree

Donald Wilbur's father was Edward E Prohaska and his mother was Eva Marie Mulholland.  His paternal grandparents were John Prohaska and Josephine Krokil. He had two brothers and two sisters, named Edward M, Edwin, Gage and Margaret.

Sources/Citations
World Family Tree Vol. 13, Ed. 1 @ Tree #2637, 2637.ftw

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