I don't know about you but I'm fascinated by Blacksheep Ancestors. I have quite a few of my own!
A historian claims to have found the oldest mugshots in the world. The photos were taken by the deputy governor of Derby Gaol in Derbyshire England from 1857 on.
I've written about these fascinating ancestors previously at
Who's Got Blacksheep Ancestors?
The Tragedies Behind Blacksheep Ancestors
If you're looking for places to search for your Blacksheep Ancestors, see the following websites
New York Prison Records 1797-1931 Online
Online: Kingston Penitentiary inmate history description ledgers
List of Prisoners in York (Toronto) Jail 1814
Photos of Child Criminals 1870s
Black Sheep, Good Sheep
See the mugshots at Historian claims to have found the oldest criminal mugshots 'in the world'