St. Magnus, American Oxford Hymnal No. 277

The American Oxford Hymnal ([AOH], pub. OUP, 1930) gives as hymn number 277 C. Wesley's "Let saints on earth in concert sing", set to two tunes. Odd thing is, both tunes (completely dissimilar aside from both being being C.M. and both being in G and starting on D) are identified as "St. Magnus" by Jeremiah Clark. The second tune is the usual St. Magnus, similar to the MIDI at The Cyber Hymnal ™, which TCH says was arranged by Monk. (TCH also spells the composer's name "Clarke".) Can any of my millions of hymnically informed readers identify the first tune? Here is a link to a MIDI version, for those whose hymnals at hand don't include the 1930 AOH: AOH277A.mid.