Did you by any chance know the Murray's when you lived on Lake Michigan. They had about nine kids, the dad was a big commodity trader in the grains. I think they lived nearby.
There was a Murray family that somewhat fits that description from Chicago that had a summer/vacation home in Grand Beach, Michigan, about 5 miles from where I lived just across the Indiana border. Not sure if it's the same one, but the sons were the biggest assholes around.
About 5 years ago, one of the sons got drunk and ran onto the field at wrigley. Got his picture in the Trib.