Ira -
While I am aware of James Braid very large body of work as a GCA, I think the holes you found most interesting at Golspie (5, 7, 9, 16 & 17) were there and in play before Braid's visit to the course in 1925.
I have a copy of Golspie's 100-year book, which contains maps of the course in 1910, 1921 and 1925. The 1921 map shows all five of those holes very much where they are today. Aside from recommending lengthening and building a new two-tier on the 16th hole (which is still there today), I am not sure just how much Braid contributed to the other four holes you liked so much.
It is worth noting that the par-3 6th hole is shown as being 175 yards on the 1921 map. Today, that hole is 150 yards from the back tee, which means that 25 yards of shoreline have been lost to erosion over the past 100 years.
DT