Joel -
How can any of us know what was going thru the good Doctor's mind 70+ years ago? My guess is that he would have been willing to design a course and earn a fee just about anywhere in the middle of the Depression.
As far a having his name linked to the course, I am not aware any anyone is currently promoting Sharp Park as being part of the Mackenzie "golf trail" in Northern California (Cypress, Pasatiempo, Green Hills & the Meadow Club).
Other than the participants on this board and a few like-minded golf course nerds, I doubt 98% of the people who play Sharp Park on a regular basis know or care that Mackenzie designed the original course.
DT