List of 15 ancestors found in 40 iterations (15 distinct persons and 15 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Louis Colson (28/11/1874-09/04/1954)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Juste Colson (1828-1901)
3Eugénie Drugmand (1839-1912)
Generation 2 - 4 person(s) on 4 (4 distinct persons)
4Jean Colson (18/05/1803-28/06/1870)
5Justine Pierson (06/03/1802-31/03/1882)
6Désiré Drugmand (15/04/1811-1886)
7Angélique Bara (13/04/1811-1882)
Generation 3 - 4 person(s) on 8 (4 distinct persons)
8Antoine Colson (06/06/1774-13/07/1817)
9Philippine Derossart (10/06/1774-1831)
10Adrien Pierson (22/02/1775-15/01/1823)
11Marie Feron (18/01/1779-12/08/1829)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
16Toussaint Colson (03/01/1734-1801)
17Marie Huttebize (22/05/1745-1807)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
32Louis Colson (~1704-)
33Catherine Francotte (~1706-)