Mathematical Ancestry of P.J. Fitzsimmons
 O. Mencke (begotten in 1665) begat (in 1685)
 J. C. Wichmannshausen, who (in 1713) begat
 C. A. Hausen, who (in 1739) begat
 A. G. Kästner who (in 1786) begat
 J. F. Pfaff, who (in 1799) begat
 C. F. Gauss, who (in 1812) begat
 C. L. Gerling, who (in 1823) begat
 J. Plücker; meanwhile,
 E. Weigel (begotten in 1650) begat (in 1666)
 G. W. Leibniz, who begat

Ja. Bernoulli begat (in 1694) his younger brother

Jo. Bernoulli, who (in 1726) begat

L. Euler, who (in 1756) begat

J.L. Lagrange, who (ca. 1795) begat

J.B. J. Fourier
and (ca. 1800)

S. D. Poisson,
who (in 1827) jointly begat
 J. P. G. L. Dirichlet
who (in 1853), jointly with M. Ohm (begotten (in 1811) of K. C. von Langsdorf (himself begotten in 1781)), begat
 R. O. S. Lipschitz,
who, together with
 J. Plücker,
begat (in 1868)
 F. C. Klein, who (in 1873) begat
 C. L. F. v. Lindemann,
who (in 1885) begat
 D. Hilbert,
who (in 1910) begat
 R. Courant,
who (in 1926) begat
 W. Feller,
who begat (ca. 1953)
 H. P. McKean,
who (in 1976) begat
 K. J. Hochberg,
who (in 1981) begat
 P. J. F.
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Last updated October 12, 2006