Surname distribution maps for Wrench
Wrench in the 1881 Census
Wrench in the 21st Century
The maps, if available, show both where there are more people named Wrench and where they are most concentrated.
The darker the colour, the more people in that county are named Wrench.
The larger the dot, the greater the proportion of people in that county are named Wrench.
Hovering over the dots will give you the individual statistics for that county.