Marie-Jeanne de Lalande

[4] Her father taught the young couple calculation and observation methods in astronomy.

Her reputation as a scientific woman was attested by an anecdote related to Carl Friedrich Gauss: In 1806, during a military campaign in Prussia, he declared he knew but one French woman that worked in Science, Madame Le François de Lalande"[5] She died in 1832 at the age of 64.

[6] She calculated the Tables horaires de marine, which was published in Jerome Lalande's Abrégé de navigation historique théorique et pratique avec tables horaires (1793).

[1] These calculations earned the author one of the medals of the Lycée des Arts for distinguished scholars and artists.

She also collaborated on the writing of L'Histoire céleste française written by Lalande and published in 1801.