| 1812 | Birth / baptism | Benjamin Langevin-Lacroix | Montréal |
| 1856 | ABCD document | Benjamin Langevin-Lacroix | Maniwaki |
| 1896 | Individual | Benjamin Langevin-Lacroix | Maniwaki Gatineau |
| 1870 | ABCD document | Benjamin Langevin-Lacroix | Maniwaki |
| 1870 | ABCD document | Benjamin Langevin-Lacroix | L'Assomption de la B.V.M Maniwaki Gatineau |
| 1870 | ABCD document | Benjamin Langevin-Lacroix | Maniwaki |
| 1901 | ABCD document | Benjamin Langevin-Lacroix | L'Assomption de la B.V.M Maniwaki Gatineau |
| 1901 | ABCD document | Benjamin Langevin-Lacroix | L'Assomption de la B.V.M Maniwaki Gatineau |
| 1905 | ABCD document | Benjamin Langevin-Lacroix | Sainte-Philomène-de-Montcerf Montcerf Gatineau |
| 1905 | ABCD document | Benjamin Langevin-Lacroix | Montcerf |