List of 3 ancestors found in 40 iterations (3 distinct persons and 3 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1François Descubes (10/10/1808-25/08/1876)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Jean-Baptiste Descubes (~1778-)
3Françoise Maisondieu (~1780-)