Heyyyyyyyy! Based on my experience in selling oddities for five years, this look like an Odd Fellows skeleton. I've worked at an oddities shop for 5 years and we sell 2 or 3 human skeletons a year, usually with a small coffin, just like the one pictured, and they almost exclusively come from Odd Fellows lodges. There's a line in the article quoted that mentions the skeletons were sometimes wried up and shaking with electricity for initiation ceremonies. The article says they cannot confirm this, however, I CAN confirm that. One of one of our former skeletons that we had for almost a year was electrically wired with red lightbulbs in her eyes. Also, every skeleton we've received from Odd Fellows lodges have been female, sometimes teenage females.