Pedigree:
1. an ancestral line; line of descent; lineage; ancestry.
2. a genealogical table, chart, list, or record, esp. of a purebred animal.
3. distinguished, excellent, or pure ancestry.
To me that means everything about the people and nothing about the course. But before you get all excited, I think this could be modified to "course history and the preservation thereof" or something of that ilk to get to what I think Patricks intent for this thread is.
You're correct, pedigree is not the correct word but you get the point,
Synonyms: ancestor, antecedent, antecessor, blood, breed, breeding, derivation, descent, extraction, forebear, forefather, foregoer, forerunner, genealogy, heritage, house, kindred, line, lineage, origin, parentage, pedigree, precursor, primogenitor, progenitor, race, source, stock
It comes down to what clubs repect their history and architects and are willing to preserve their work. What might be more interesting is how do they do it, as members die and committees change, what makes it work at Chicago Golf and San Francisco GC that makes them not change?
One time I played SFGC and a member was telling me a story about another member who wanted to change the bathrooms and showers at SFGC and make them more modern. He was very persistant and finally one day a prominent member (maybe the President) told him that should he bring it up again he would be expelled from the club.
I will add that St. Andrews Golf Club in New York, one of the 5 original USGA clubs didn't value their history.