I hope the following link works.
The following maps show the densities of people with the surname of "Rutherford" in the United Kingdom. (Dates in brackets.) The above link is to the main page to check other names.
Name or Category: RUTHERFORD (1881)
Name or Category: RUTHERFORD (1998)
For more data on Rutherford Surname: International Comparisons
HT (Hat Tip): How to play the global name game
PS (10-16-07): Be sure to check out LondonProfiler