Mark-
You've said old aerials confirm the two bunkers were rather nondescript, even close in time to the course's completion?
Wow.
This is a tough call. On one hand, I like what I have learned on here from the older guys in terms of handling a restoration, that is establishing a baseline or time period and then restoring to that point in time, without deviation.
On the other hand, one has to wonder if redesigning the bunkers to be more consistent in appearance and playability with the others on the course is an act that has merit. This requires a lot of thought. Firstly, are there any maintenance issues with the two odd bunkers as they are today?
Here's where I am going with this; on one hand, I like and appreciate the logic behind restoring to a fixed time period. This way, there is no deviation--it's black and white, cut and dry. On the other hand, I do like the bunkers and holes at a given course to have an architectural consistency the whole way 'round.
(I have a specific example to cite, but will not at this time. It is local and am waiting to speak to some related parties personally).
Now, as far as establishing that consistency, I feel it is important to stay in-line with what Tillinghast may have done there, as long as other features are not obliterated (see Rees Jones doing a Tillinghast interpretation and the green surrounds of Bethpage Black).
As I write this, I still go back to the "point in time" view, because when one opens the door for a bit of interpretation, even when it is done by those knowing of the relevant style, it still sets a precedent, and that is what I am afraid of, that others in the future can use this precedent and pervert it.
Are there any drawn plans? I believe that is what Aronimink did, no? Go back to the plans and restore to that?