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