The second drawing you have posted of the Great Issac showing a view of the wreck from above the wheel house is not the work of Chuck Zimarro. Gary Gentile and I surveyed the wreck in the early 1980's and I did the drawing (great_isaac_sketch.gif) which you have copied from the back cover of Gary Book about NJ Wrecks. Gary and I hold the copywrite to this artwork. Chuck did produce his own art of the Great Issac a "bow" view of the wreck site. His drawing shows divers and a dive boat moored over the wreck. Gary and I would appreciate the proper credit for our work.
Regards, Joe Milligan - Cape May, NJ