I happened upon this post by chance while performing a search I do regularily. Frank (Francis) Sargent was my great grandfathers brother, so that would make him my great uncle?
Both brothers were in the choir, and after returning back to Newport, Frank chose to emmigrate to America. He had one daughter, Gwen, she never married and passed away a few years ago. Since then I've been trying to collate information I know about the Gwent Glee Singers...but haven't got too far yet! You can see the information and a picture I have here:
www.an-aim-ation.co.uk/gwentglee/indexb.htm I believe Ernest would be on the picture, if it was taken during the tour (I think it was). I am always looking for new information or stories though, so if anyone knows anything they would like to share, please e-mail me.