- 1 Pierre Francois Hamelin (1801- ) (Fr) [1] m (1840, St Mt) Elizabeth Queree (1801- )
- 2 Pierre Hamelin (1831- ) (St Mt)
- 2 Jean Hamelin (1836- ) (St S) [2] m (1859, St S) Ann Elizabeth Renouf (1837- ) (St Mt) daughter of Thomas [3]
- 3 Ann Mary Hamelin (1859- ) (St S) m (1886, St Mt) John Francis Le Rendu (1863- ) son of Jean
- 3 John Hamelin (1861- ) (St S) [4] m (1886, St S) Mary Jane Huelin (1862- )
- 4 Mary Ann Hamelin (1887- ) (St S) m (1914, St H) Stanley Le Bas, son of Edwin
- 4 John Francis Hamelin (1888- ) (St S)
- 4 Sydney John Hamelin (1891- ) (St S) [5] m 1 (1911, Tr) Luciana Queenie Garnier (1890-1971) (Canada) daughter of Charles John [6]
- 5 Sydney John Hamelin (1912- ) [7] m (1931, Tr) Hilda Grace de La Mare (1910- ), daughter of Walter Herbert [8]
- 6 Roger Hamelin
- 6 Michael Hamelin
- 5 Dulcie Joan Hamelin (1914- )
- 5 Douglas George Hamelin (1922-1978) m (1954, Scotland) Patricia Philomena O'Hara (1929-1977)
- 6 Fiona Katherine Hamelin (1954- )
- 6 Alison Margarert Hamelin (1959- )
- 5 Sydney John Hamelin (1912- ) [7] m (1931, Tr) Hilda Grace de La Mare (1910- ), daughter of Walter Herbert [8]
- 4 John Sydney Hamelin (1893- ) (St S)
- 4 Reginald Hamelin (1894- ) (St S)
- 4 Ada Jane Hamelin (1896- ) (St S) m (1922, St Andrew) Clifford Reuben Holmes, son of William
- 2 Marie Hamelin (1840- ) (St S) m (1869, St S) Louis John Francis Le Chevalier (1844- ) [9] son of Louis George