List of 11 ancestors found in 30 iterations (11 distinct persons and 11 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Alfred Colson (08/05/1847-22/06/1859)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
Generation 2 - 4 person(s) on 4 (4 distinct persons)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
Generation 4 - 2 person(s) on 16 (2 distinct persons)