| Ralph Dundas | |
| 1st of Airdbheith
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| Son of: | Robert William Dundas |
| and: | Louisa Mary Wardlaw Ramsay (born 7/1/1886, died 27/11/1955) |
| born: | 14/10/1912 |
| died: | 12/7/1982 |
| Purchased the property of Airds in 1956. Matriculated arms as Ralph Dundas of Airdbheith. | |
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| x 16/7/1946 Margaret Maclean daughter of the 16th Maclean of Ardgour. Born 20/7/1923 and died 28/3/1988. | |
| the following children were born of this union: | |
| 1. | Robert Alexander Dundas, 2nd of Airdbheith |
| 2. | Hew Ralph Dundas |
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| Airds | |
| Robert Alexander Dundas | |
| 2nd of Airdbheith
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| Son of: | Ralph Dundas |
| and: | Margaret Maclean of Ardgour |
| born: | 12/6/1947 |
| died: | 1/11/2003 |
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| x 9/7/1977 Sarah Rosalind Wilson | |
| the following children were born of this union: | |
| 1. | Catriona Bridget Dundas born 16/1/1985 |
| 2. | Ralph William Dundas born 15/3/1988, 3rd of Airdbheith |
| Hew Ralph Dundas |
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| Son of: | Ralph Dundas |
| and: | Margaret Maclean of Ardgour |
| born: | 4/8/1953 |
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| x 1/11/1992 Lê Thị Ngọc Vân | |
| Ralph William Dundas | |
| 3rd of Airdbheith
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| Son of: | Robert Alexander Dundas |
| and: | Sarah Rosalind Wilson |
| born: | 16/3/1988 |
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| x 6/9/2014 Sophia Elizabeth Garnier | |
| the following children were born of this union: | |
| 1. | Frank William Dundas, born 13/6/2019 |
| 2. | Douglas James Dundas, born 23/10/2020 |
| 3. | George Hector Dundas, born 28/12/2022 |
