Malcolm (1898-1987) was a son of Donald Matheson and Mary Maclean, 5 Kneep. He served in the Royal Naval Reserve during the First World War and a record for him can be found in the Roll of Honour 1914-1918. 

 When Ardroil was relotted in the early 1920s Malcolm was allocated Croft number 6 and moved there with his parents and youngest sister Annabella. He was married to Catherine Morrison, 3 Carnish and they had six children.