The surname of ASHBURN was of the locational group of surnames meaning 'one who came from ASHBURN' in County Sussex. The name was originally rendered in the Old English form ESBURNHAM, and literally meant the dweller near the fort where ash-trees grew. The earliest of the name on record appears to be ASHEBURNE (without surname) who was recorded in the Domesday Book of 1086. ASHBOURNE (without surname) appears in 1323 in County Sussex. Surnames derived from placenames are divided into two broad categories; topographic names and habitation names. Topographic names are derived from general descriptive references to someone who lived near a physical feature such as an oak tree, a hill, stream or a church. Habitation names are derived from pre-existing names denoting towns, villages and farmsteads. Other classes of local names include those derived from the names of rivers, individual houses with signs on them, regions and whole countries. Later instances of the name mention Robert William ASKEBRENER who was documented in Wakefield, Yorkshire in 1308, and Thomas ASBORNER appears in County Sussex in 1332. Many factors contributed to the establishment of a surname system. For generations after the Norman Conquest of 1066 a very few dynasts and magnates passed on hereditary surnames, but most of the population, with a wide choice of first-names out of Celtic, Old English, Norman and Latin, avoided ambiguity without the need for a second name. As society became more stabilized, there was property to leave in wills, the towns and villages grew and the labels that had served to distinguish a handful of folk in a friendly village were not adequate for a teeming slum where perhaps most of the householders were engaged in the same monotonous trade, so not even their occupations could distinguish them, and some first names were gaining a tiresome popularity, especially Thomas after 1170. The hereditary principle in surnames gained currency first in the South, and the poorer folk were slower to apply it. By the 14th century however, most of the population had acquired a second name.