My biggest unresolved 'skeleton' surrounds my great great great grandfather, John Green (1836-1901).
After finding him and his family on the 1841, 1851 and 1861 censuses, I went onto 1871. I was unable to find him anywhere in the country so, working on the assumption he had died, I started to search for his widow or any of his children. I found them living in Howden, Yorkshire. Sure enough, his wife Mary was head of the household and a 'widow'. Whatsmore, the family had fallen on hard times as they were all claiming outdoor poor relief.
I then went onto to find Mary and the children in 1881. Then came the surprise - I found Mary and the children, but the head of the household wasn't Mary - it was the 'dead' John Green. It was definately him - same age, same job and cited as father of all the children. This situation was repeated in 1891 - John had come back to life.
If this wasn't enough, the 1901 census confused things further.
In 1901 John appears in the house of his 'sister' (a widow) called Ann Dickson. However, John doesn't have a sister called Ann.
Ann had several children, some with her surname, some with the surname 'Green'. This got me thinking - were these her illegitimate children born when her surname was Green (assuming she is his sister)? Or is it possible that Ann isn't his sister at all, and that the Green children are John's?
Why was he living in another town away from his family - this was more than just a visit, as he died there in late 1901.
As yet I haven't explored either mystery fully, though John is throwing up some real mysteries.