Jeff,
All my Medinah info is boxed away at the moment, so I'm not sure about the KN bunkering on 6 or 10. There's no record of George Fazio doing anything on No. 3 (same for Harry Collis, whom was credited with Bendelow's redesign in some circles for years).
Here's how Medinah's grown over the years, based on tournament yardages (see page 318 for scoring):
Original Bendelow layout (1928-32):
1930 Medinah Open, 6,261 yards, par 70
Revised Bendelow layout (1933-85):
1935 Medinah Open, 6,768 yards, par 71
1937 Chicago Open, 6,778 yards, par 71
1939 Western Open, 6,869 yards, par 71
1946 Chicago Victory National Championship, 6,650 yards, par 71
1949 U.S. Open, 6,936 yards, par 71
1962 Western Open, 7,110 yards, par 71
1966 Western Open, 7,014 yards, par 71 (course unchanged from 1962, but remeasured with more accurate equipment)
1975 U.S. Open, 7,032 yards, par 71
Bendelow-Packard layout, with Jones refurbishing (1987-present):
1988 U.S. Senior Open, 6,881 yards, par 72
1990 U.S. Open, 7,195 yards, par 72
1999 PGA Championship, 7,401 yards, par 72 (Rulewich 17th green on hill)
2006 PGA Championship, 7,561 yards, par 72 (Jones 17th green by water in Packard's spot)
And is it just me, or are there more threads on Medinah and the PGA than for any other recent tournament and course?