I should post a list of all the clubs in the UK that I have no architect for? I think I should do it County by County.
Duncan - I 'think' what tended to happen was a group of golfers decide they had some land and wanted to form a course nearer to them and they hired someone for a day. There are plenty of pre 1900 courses that still generally have the hand of the original. There are plenty of Tom Morris', Willie Parks, Charlie Hunter did a few, The Dunnes.
Courses were shorter pre 1900, some only 9 holes so with the expansion of the game, there were changes made to courses by the Vardons, Taylors and Braids and Harry Colt. Adding a block of land of 20-30 acres for 4 or 5 new holes sometimes means significant changes for 9 or more holes, so I suspect thats how those names tended to get added as they sort of did the major work.
I have made some additions to some courses. I added 4 new holes at Wells in a new block of land (those holes were clearly mine) I abandoned a couple of short holes and combined them with another so perhaps 7 were mine. Hawtree is the name that did the original. The committee did a few holes early 70s, so I reckon only the 1st, 2nd, 4th, 10th, 17th and 18th are Hawtree's and two of those greens have been moved and the 17th was scheduled for a rebuild. The club produced its history about 10 or so years ago and yet there is no mention of my work or any architect other than Hawtrees doing the original course. Some clubs just dont care. It is a problem to know who designed what even in today's age, I reckon its about 40% mine and certainly dont claim it as a course, but it is really hard to know who did what at most UK courses because almost all of them have been to the doctors a couple of times.