Adam, the Foxford Hills are more typical. Met Dad halfway at Harborside (although the last nine -the back of Starboard is more me). Congradulations on picking up that #15 and 16 at Foxford are a tribuate to #11 and 12 at Kemper - well done.
As far as differences from Dad, well he went through several phases when it came to bunker styles but tended to use them much in the same way throughout his career. Kemper/Forest Preserve (Dunne) National/Sand Creek were the big Fla. bunkers made with straight blade D-6's. Big lobey things. I never liked them - perhaps because I had to hand edge the ones at Kemper as a teen.
In the eighties, sites got smaller and so did the bunkers. More and tighter lobes coupled with lower/ flatter "Ross" style sand lines in response to super's tired of "pushing up sand after a rain". However, found that mowing banks was an unintended consequence. In the 90's when I came back, we started building more into the ground (something I pick-up from working on Desert Highlands) rather than on top of it. This lead to Dick's "closer/steeper/deeper" phase. Also, began depressing the fronts to allow for better vision as the bunkers were deeper. Had to fight contractors that wanted to keep fronts high to prevent water from draining in. Began creating basins out in front to solve that issue.
Currently, I use more but smaller (under 1,000sf) bunkers than Dad did. Also, I tend to have the sand between 1/3 and 2/3 up the face with more undulating sand lines. I personally paint all of them myself - never leaving it up to the contractor. (White Deer Run being the exception). Now with the new Sandtrapper/SandDam type bunker liners I can get higher flashes if I need.
Also, Dad tended to want to follow the contour of the bunker cavity with the sand line while I tend not to.
As for placement, He tended to bunker more around greens. I like to leave open areas around greens where I can leave for a bailout and use tight hollows and grass bunkers instead.
In fairways, his were more adjacent to the fairway while I push mine into the fairway to defend the line of charm.
If you live around here, I have a 9-hole course opening in Munster, IN called Centennial Park. That should give you a pretty good indication of my bunkering. One day I'll figure out how to use photobucket and post some.
Tom Doak, given that Old Mac is a tribute course, do you feel that it gave you more latitude to mix/match styles than you would have otherwise done?