List of 7 ancestors found in 40 iterations (7 distinct persons and 7 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Ernest Lefebvre (18/04/1883-24/12/1946)
9Madeleine Duez (25/04/1886-14/11/1974)