A friend who is conducting one of our local bands has asked about this. Apparently he has about 20 bars of this march and wondered if it would be possible to locate a full set. The Machine Gun Corps was a short-lived body founded in 1915 and disbanded in 1922 - part of it was divided off before its demise to become the Tank Corps which later became the Royal Tank Regiment. He says he has made contact with Kneller Hall who apparently know nothing about it Assuming this march to be one only used in this limited time frame, I'd guess it to be out of copyright? Does anyone have a set lurking in the far recesses of their music libraries? Or have any suggestions for locating one?