Birmingham, Nottingham, Wellington, Faringdon, Warrington, and Wallingford are well-known names formed on the same analogy.

How thickly these clan settlements lie scattered over Teutonic England may be judged from the number which occur in the London district alone--Kensington, Paddington, Notting-hill, Billingsgate, Islington, Newington, Kennington, Wapping, and Teddington.

There are altogether 1,400 names of this type in England.

Their value as a test of Teutonic colonisation is shown by the fact that while 48 occur in Northumberland, 127 in Yorkshire, 76 in Lincolnshire, 153 in Norfolk and Suffolk, 48 in Essex, 60 in Kent, and 86 in Sussex and Surrey, only 2 are found in Cornwall, 6 in Cumberland, 24 in Devon, 13 in Worcester, 2 in Westmoreland, and none in Monmouth.

Speaking generally, these clan names are thickest along the original English coast, from Forth to Portland; they decrease rapidly as we move inland; and they die away altogether as we approach the purely Celtic west.
The English families, however, probably tilled the soil by the aid of Welsh slaves; indeed, in Anglo-Saxon, the word serf and Welshman are used almost interchangeably as equivalent synonyms.