There are many Mormon hymns that use folk melodies.
'Praise to the Man' = 'Scotland the Brave'
'Lord, dismiss us with Thy Blessing' = 'Go tell Aunt Rhody' (although the hymn book credits the melody to Jean-Jacques Rousseau, 1712-1778)
'Truth Reflects upon Our Senses' = 'Life railway to Heaven' (again the hymn book credits a Charles Davis Tillman, 1861-1943)
I wonder how many hymns turned into folk songs and then, in turn, became a hymn once more based on the folk song? Interesting thought!
Mike