Malcolm (1886-1922) was a son of  Alexander Maclennan and Catherine Macdonald, 10 Kirkibost. Malcolm served with the Royal Flying Corp during the First World War.

Malcolm married Mary Macdonald of 5 Crulivig; the couple settled in Glasgow where they had two children. Both Malcolm and Mary died whilst their children were young; the children were thereafter brought up at 5 Crulivig.