There were only 262 Rugmans living in England and Wales and none in Scotland in 1901. The total population for England & Wales was 32.5million. On the Scottish Origins website there are no Rugmans recorded.
Gloucestershire was the most populated Rugman county with 154 which was more than half the total.
Surrey 27, Middlesex 18, Sussex 17, and Cheshire 10, are the only other counties in double figures.