My doctoral genealogy, tracing back Advisors, in succession from my own Advisor: Jean-Paul Benz\'ecri (awarded Princeton, 1955); Henri Cartan; Paul Montel; Emile Borel and Henri Lebesgue; Gaston Darboux; Michel Chasles; Simeon Poisson; Joseph Lagrange; Pierre-Simon Laplace, Leonhard Euler; Johann Bernoulli; Jacob Bernoulli; Gottfried Leibniz; Christiaan Huygens.