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