Luacine Clark Fox (1914–2002) is the composer of “Love One Another.” She was the daughter of J. Reuben Clark, who served in the First Presidency of The Church of Jesus Christ of Latter-day Saints from the 1930s to the 1960s.
A 2007 book by Patricia Kelsey Graham titled We Shall Make Music describes the background of “Love One Another.” While Fox was writing the music for an Easter cantata, she explained how the song came to her:
“It is always my habit to pray before doing any writing or composing. This I did while in the process of working on Psalm of Easter, from which “Love One Another” is taken. In searching the scriptures, I came to the words of the Savior at the Last Supper wherein he gave his new commandment to love one another. I knew I had found the theme I wanted. As I jotted down the words in my notebook, taken from John 13:34–35, the melody to accompany them came into my mind, and I wrote it down as well. The final result of the words and music was exactly the same as had come to me initially, with no variation whatsoever. It is my witness that whatever is of worth in the song came from the Lord.”