Release date and A side based on Gramophone Feb 1927 (not quite confident enough to add Feb yet).
Bit more research reveals:
Land Of Hope And Glory was recorded 15 Sep 1925 at Camden, New Jersey. It was take 11 (of 12), from the 3rd recording session. Only take 1 (30 Jul) and take 9 were also retained. All recordings from 1 Sep were destroyed. Full recording info here. Issued on Victor as Victor 19783 Nov 1925.
Associated Glee Clubs Of America (1,000 Male Voices) recorded at their performance in New York City ( 6 Feb 1926 at 71st Regiment Armory )
It does not appear to have been released in the USA.
Phew... 50p well spent?
Must find a machine to play these fascinating objects.