Luckily, a lot of the stuff I was wrong about, I sorted out in the time between starting in this business [early 1980's] and the formation of Golf Club Atlas [1999], or even before the publication of my first book. It's a great relief that I didn't put anything cringeworthy in there, because I'd still be paying for it.
On the other hand, I am glad my co-authored book on Dr. MacKenzie is out of print, because there were some factual mistakes in there, which is never good for a history book.
Many of my early writings romanticized the work of the Golden Age designers, and helped to perpetuate the myths about them, while minimizing the degree to which their associates contributed to the finished product. I certainly wasn't alone in that: Herbert Warren Wind and others subscribed to the "great man" theory of golf designers long before me, and to be fair, it would have been hard to get anyone interested in the topic back then if they had explained the complexities of design, construction, and credit. But because all of that is in print and most people read those accounts first, it's harder to correct the record of how things actually happened, and how much help all those "amateur architects" and big names actually had.
And, of course, those myths about the great men are a lot of what drives the business of golf course restoration today.