The roots of the Anglo-Saxon name Hornby come from when the family resided in one of the places called Hornby in Lancashire, Westmorland (now part of Cumbria), or the North Riding of Yorkshire. More common variations are: Horneby, Hornbby, Hornoby, Hornaby, Hornbay, Hornbey, Hornbuy, Harnby, Hurnby. The surname Hornby first found in Lancashire at Hornby, a township, and chapelry, and formerly a market-town, in the church of Melling, hundred of Lonsdale. There are two Hornby Castles of note like the first in Lancashire which originally built for the Neville family in the 13th century and the second in Yorkshire, home to the St Quintin family. We must look to the latter shire to find the first record of the surname, namely William de Horneby who noted in the Pipe Rolls of Yorkshire in 1205. Some of the people with the name Hornby who arrived in the United States in the 17th century included Mercy Hornby, who settled in Virginia in 1735.