yes, well done Chris, David, Tom...although Tom could have mentioned the name John earlier on!
I thought it might have been John but wasn't sure. Seems I came across that. I burned my bridges with the grandson of Morgan Davies by mentioning the Ripper connection before I was granted access to the archives. Someone else might want to contact him and try a different approach? He's a lawyer. But somewhere on the web is an inventory of what's left of Morgan Davies' personal papers and somewhere in there an Evans is mentioned, which means this item still exists in the archive. Word to your researcher.
There isn't a Dr Morgan Evans in the 1913 medical directory. The only place I've seen a Dr Morgan Evans mentioned was to do with the history of an old house in Wales, built by a Dr Morgan-Evans as a house and surgery in 1903, even then I think the name is a double barrelled surname as it appears with a hyphen.
He was there after all under the name John Morgan Evans
John Morgan Evans
The Cottage Llandrindod Wells, Radnorshire
1886, Aug. 23 E
Lic. R.Coll Phys. Lond, 1885
Mem. R. Coll.Surg. Eng., 1886
He was the same Dr Morgan-Evans that had the house and surgery built in 1903 The Cottage