Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
HELLIER
As described in historical dictionaries
Patronymica Britannica (1860)
HELLIER. The A-Sax. helan, like the southern provincialism, to heal, signifies to cover ; and in tlie \''est of England a lieWier is a thatchcr or tiler, equivalent to the French couvveur, one who covers buildings with any material whatever. It was a kind of generic appellative, including the Thatchers, Tylers, Slaters, Shinglers, and Eeeders, all of whom are also separately represented in our family nomenclature. In Walsingham's History, the arch-traitor, Wat Tyler, is designated " Walterus Helier."