Brandywine Springs Park Request

I just found out recently that New Castle County has decided to tear down the main pavilion at
Brandywine Springs Park and rebuild a new one. For those familiar with the park, this would be the larger pavilion down the hill from the parking lot, as seen here. Apparently it is suffering from structural problems that are too extensive to economically fix, so NCC has determined that it's more cost effective to just replace it.

I've had some fun there, but the pavilion itself is not particularly historically valuable, so I don't have any problem with them putting in a nice, new facility. The existing pavilion was built in the 1950's, when the park, originally a State Park, first opened. And as those of you who have been around here a while may recall, it was not originally alone. When Brandywine Springs State Park opened, there was another building that stood in front of the pavilion, just to the left of the photo above. This building contained the park office, along with restrooms. We're not quite sure exactly when this office was removed, but some recall it still being present as late as the mid-1980's.

Now here's my challenge to you -- Does anyone have any more information, any fond memories (that would be suitable for a family blog), or any old photographs of the office or the pavilion? More specifically, does anyone remember exactly when the office was torn down? Any special memories of the pavilion to help eulogize it? And does anyone happen to have any pictures that might happen to show the office in the background? I realize that it's unlikely that you would have taken just a picture of the office, but maybe it might be visible in the background of a shot from a picnic, or a party, or a family reunion. Thanks!!