It started when I was answering a question. A person had posted a orphan profile and had asked a question about it. When it is an orphan profile, I usually ask the person if they are related and have information if they would like to adopt that profile. In this case a family of Cox's all had no spouses, so I thought I would add all the spouses. As I did that I found that I had added someone that was already in wikitree but the name was different.
When I looked more. to my surprise there were so many duplicate's of the same person.