From the history book
Evan Stephens first wrote the words as a girls' trio celebrating Wilford Woodruff's 90th birthday. This would definitely explain "the advancing years" line! Though of course, that applies for most of our Latter-day prophets, which the book mentions. The tune was adapted from another. And succeeding hymnals kept it as a female trio. The 4-part arrangement came from Darwin Wolford for the Mormon Youth Chorus (ah--one of my never-to-be dreams). A choir in Fayette New York also joined in via satellite and sang it in General Conference on April 6, 1980--the sesquicentennial anniversary of the Church's organization.