William Barlow

(male) Probably the most successful of all the Old French names of Germanic origin that were introduced to England by the Normans. It is derived from Germanic wil ‘will, desire’ + helm ‘helmet, protection’. The fact that it was borne by the Conqueror himself does not seem to have inhibited its favour with the ‘conquered’ population: in the first century after the Conquest it was the commonest male name of all, and not only among the Normans. In the later Middle Ages it was overtaken by John, but continued to run second to that name until the 20th century, when the picture became more fragmented.

English: habitational name from any of several places called Barlow, especially those in Lancashire and West Yorkshire. The former is named with Old English bere ‘barley’ + hlāw ‘hill’; the latter probably has as its first element the derived adjective beren or the compound bere-ærn ‘barn’. There is also a place of this name in Derbyshire, named with Old English bār ‘boar’ or bere ‘barley’ + lēah ‘woodland clearing’, and one in Shropshire, which is from bere ‘barley’ + lēah.