Born: April 26, 1814, Kelso, Scotland.
Died: January 5, 1840, Cleish, Kinrossshire, Scotland.
Buried: Cleish, Kinrossshire, Scotland.
Daughter of Robert Lundie, Parish Minister of Kelso and sister-in-law to Horatius Bonar, Mary married in 1836 to William Wallace Duncan, Parish Minister of Cleish, Kinrossshire. Her hymns, mostly written for her children between July and December 1839, appeared in 1841, in her posthumous Memoir, by her mother; they were re-issued in 1842 as Rhymes for My Children.