When Malcolm Ross Mullen was born on 9 July 1896, in Saint Paul, Ramsey, Minnesota, United States, his father, Thomas Calvert Mullen, was 24 and his mother, Margaret Sproule Olmstead, was 26. He lived in East Glacier Park, Glacier, Montana, United States in 1930 and School District 50 Glacier Park, Glacier, Montana, United States in 1940. He registered for military service in 1917. He died on 7 April 1968, in Glacier, Montana, United States, at the age of 71, and was buried in Kalispell, Flathead, Montana, United States.
Irish: Anglicized form of Gaelic Ó Maoláin ‘descendant of Maolán’, a byname meaning ‘tonsured one, devotee’ (from a diminutive of maol ‘bald’). The variants Ó Maoileáin and Ó Maoilín result in a variety of vowels in the Anglicized forms.
Dutch (Van der Mullen): variant of Van der Molen (see Molen ).