Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
LETHBRIDGE
As described in historical dictionaries
Patronymica Britannica (1860)
LETHBRIDGE. Clearly a local name, though the locality is unknown. The late radical Henry Hunt, a political opponent of Sir Thos. Lethbridge, used to assert that the worthy Baronet's grandfather was a foundling, who had lieen exposed in a pair of ' IcaUier breeches P Tlie not altogether dissimilar name Lodbrok signifies "shaggybreeches." See Ludbrook.