Academic GENEALOGY
My academic Great Grandfather is Ferdinand Freudenstein, who is known as the "Father of Modern Kinematics". My Doctoral-Advisor lineage is (PDF of full tree available here):
Ferdinand Freudenstein > Bernard Roth > J. Kenneth Salisbury > Reuben Brewer
More information on Ferdinand Freudenstein is available via the the Freudenstein Doctoral Tree and his Wikipedia entry.