First found in Lanarkshire, where they were seated from very ancient times, some say well before the Norman Conquest and the arrival of Duke William at Hastings in 1066 A.D.

Significant portions of the populations of both the United States and Canada are still made up of the ancestors of Dalriadan families. Some of those in Canada originally settled the United States, but went north as United Empire Loyalists in the American War of Independence. The late 19th and early 20th centuries saw the ancestors of many Scots on both sides of the border begin to recover their collective national heritage through clan societies and highland games. Some of the first North American settlers carried this name or one of its variants: Robert Lockhard settled in Virginia in 1777; Gaven Lockhart settled in east New Jersey in 1685; Robert Lockhart settled in New York in 1820; Hugh, Isaac, Janet, John, Nicholas, Robert Lockhart, all arrived in Philadelphia between 1840 and 1860..

Motto Translated: I lay open locked hearts.

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