Eugene Pottier, buried in division 95 of Pere-Lachaise, authored the lyrics to the "Internationale," the revolutionary socialist song (music by Pierre Degeyter, buried in cemetery of Saint-Denis), not hte "Marseillaise" as I originally posted. The creator of the words of "Marseillaise" is Claude Rouget de l' Isle,
who was buried in the cemetery of Choisy-le-Roi before being transferred
to the Pantheon. Thanks to Philippe Landru for the correction!