My ancestors came with the conqueror: Those who did and some of those who probably did not

This little gem by the Director of the Society of Genealogists (London) contains a consolidated list of the Companions of William the Conqueror and is in effect a synthesized edition of the famous Battle Abbey Roll. In addition to being the most comprehensive version of the Battle Abbey Roll ever compiled, it includes three scholarly papers which discuss the validity of the evidence and form a basis for testing conclusions. Mr. Camp also references those Companions of the Conqueror whose names appear in the Domesday Book of 1086 and cross-references from the Roll to the Duchess of Cleveland's three-volume work on the Battle Abbey Roll and Lewis Loyd's Origins of Some Anglo-Norman Families.