I've been a consistent visitor to Great Adventure for since 2007, and since then I've taken LOTS of pictures with my digital cameras over the years. After looking through my archives, these are the ones that I personally consider to be highlights.
They had to remove the Antique Cars because the main entrance was relocated to that area. Originally they were going to place it under the Log Flume on the peninsula of land which supports part of the ride but found that not to be the best choice because water often overflowed from the trough above.
While I do not know this for sure, I believe he may have been tasked with creating the scale models for all of the Six Flags parks new attractions in 1978, which was his first and last season with the company.