List of 19 ancestors found in 40 iterations (19 distinct persons and 19 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Roger Messiaen (29/01/1915-28/09/2014)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Henri Messiaen (27/06/1885-12/06/1954)
3Madeleine Verset (14/10/1889-11/07/1948)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Louis Messiaen (23/09/1835-31/05/1901)
5Estelle Boulvain (16/10/1853-07/03/1917)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Gaspard Messiaen (1781-1838)
9Jeanne Bouhours (1800-1870)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
16Jean Messiaen (~1738-)
17Marie Seynaeve (~1753-)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
32Gaspard Messean (~1708-)
33Marie Spriet (~1710-)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
64Audomar Messiaen (04/12/1670-25/07/1751)
65Marie Liagre (~1680-)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
128Jean Messiaen (17/01/1638-10/12/1711)
129Antoinette Houzet (~1642-)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
256Roland Messiaen (~1608-)
257Guillemette Lebrun (~1610-)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
512Adrien Messiaen (~1578-)
513Marie Decottignies (~1580-)