Margareth Millar was born 1866 to John Graham Millar (1836-1913) and Margareth Strains Hopper (1836-1911) and died 1943 of unspecified causes. She married Pieter Warmenhoven (1866-1918) 24 May 1895 in Alblasserdam, South Holland, Netherlands.
Pieter Warmenhoven (1866-1918) and Margareth Millar (1866-1943), with their sons Karel Adrianus Warmenhoven (1896-1974) and John Graham Warmenhoven (1897-1971), ca 1900
Children
| Name | Birth | Death | Joined with |
| Karel Adrianus Warmenhoven (1896-1974) | |||
| John Graham Warmenhoven (1897-1971) | 1897 | 1971 | Johanna Maria Duijs (1897-1979) |
| Pieternella Warmenhoven (1899-1975) | |||
| Margareth Warmenhoven (1901-1995) | |||
| Pieter Warmenhoven (1903-1964) | |||
| Robert Warmenhoven (1905-1998) | |||
| Antonie Arie Johannes Warmenhoven (1907-1990) | |||
| Robert Alfred Warmenhoven (1913-2005) | |||
Siblings
| Name | Birth | Death | Joined with |
| Ambrose Graham Millar (1860–1861) | |||
| John Graham Millar (1862–1903) | |||
| Robert Millar (1863–1939) | |||
| Richard Millar (1864–1939) | |||
| Margareth Millar (1866-1943) | 1866 | 1943 | Pieter Warmenhoven (1866-1918) |
| Ambrose Millar (1868–1887) | |||
| Catharina Sophia Millar (1871–1951) | |||
| Charles Millar (1876–1949) | |||