The Darley family is one which can trace its ancestry back to the days before the Norman Conquest. During the last 900 years it has spread to many parts of the British Isles, Australia, the United States and Canada, and almost certainly has acknowledged relatives in all the former British Dominions, The tracing of the family history has not been easy, for the Darleys have taken no major part in the newsworthy happenings of the day, and when they have been engaged in matters of importance, they have left no written material on this involvement. At only a few places in this country are they well known -at Darley Dale where the 14th century church tower built by a member of the family stands as his memorial and guards his effigy; at Buttercrambe, York, where the Darley Arabian was brought in 1704; at Thorne, Doncaster, where the family still brews good beer as it has done for the last 200 years; at Itchenor, Hampshire, where Capt. John Darley landed Louise, Duchess of Portsmouth, in 1661; at Ipswich where they are reputed to have built the Mayflower in 1620, and in Dublin where the Darleys are closely associated with the Guinnesses.

According to Miss Erma Darley of California, Sir Edmond d'Erle was the founder of the family, being born in Normandy in 1033 and, as a follower of Neville, created Earl of Westmorland, came to England in 1066. After the Northern Rebellion of about 1087 he was seised of a knight's fee at Wistow, near Selby, Yorkshire. The family pedi­gree in the Darley family papers deposited in the North Yorkshire Record Office, begins with Sir John Darley, probably grandson of Sir Edmond, resident at Wistow in 1099. He married Armetrude Brailsforth and had a family of two sons and five daughters. From then on the pedigree remains unbroken in the direct line of descent until 1720, but there are many younger sons missing from it which is unfortunate as some of the more notable members of the family were descended from the younger sons and their place in the pedigree is not clear. It is therefore impossible to say which of the English Darleys was the founder of the Irish family or which of the Cornish branch was the first American Darley.

From the beginning the Darleys were connec­ted with Derbyshire families. Thomas (1117) married the daughter of Edmond Linacre; John (1139) married Maud Sacheverell; Edmond married Jane Fitzherbert. Other well-known Derbyshire families such as Bradbourne, Radbourfle, Babington of Dethick, Cockayne of Ashbourne, Columbell of Derby and Lowe of Alderwasley are all represented in the Darley pedigree.