Lockerby / Lockerbie
Lockerby was accepted as a sept of Douglas by CDSNA at its organization in 1975 based on the original list from the book Scots Kith and Kin. Lockerby is also a sept of clan Johnson.
Lockerby as a surname has historical connections to Lee, Lockhart, Brownlee, Dickson/Dixon and Symington.
Most likely, this surname is based on the town of the same name in Annadale. The origin of the town name is given:
“The name Lockhart is derived from Locard, sometimes spelt Lokart, which is probably Flemish or Norman in origin. The modern spelling seems to have been introduced in the fifteenth century, and refers to the crusade on which Sir Symon Locard was the custodian of the key of the casket in which Bruce’s heart was carried. Like many Scottish families the Locards came from England where they were among those who were dispossessed by William the Conqueror and sought refuge in Scotland. There were Locards near Penrith in the twelfth century and also in Annandale in Dumfriesshire, where it is said that the town of Lockerbie is named after them. The family finally settled in Ayrshire and Lanarkshire where they have held land for over seven hundred years. The earliest paper in the family archives is a charter dated 1323 by which Sir Symon Locard bound himself and his heirs to pay out of the lands of Lee and Carnwath an annual rent of £10. Stephen Locard, grandfather of Sir Symon, founded the village of Stevenson in Ayrshire. His son Symon acquired the lands in Lanarkshire, and like his father, called a village, which he founded, Symons Town (today called Symington) after himself. Symon, Second of Lee, won fame for himself and his family fighting alongside Robert the Bruce in the struggle to free Scotland from English domination and was knighted for his loyal service. He was among the knights led by Sir James Douglas, who took Bruce’s heart to the Crusades in 1329 to atone for his murder of John Comyn in the church of Greyfriars. Douglas carried the King’s heart in a casket of which Sir Symon carried the key. The Crusade ended prematurely when Douglas was killed fighting the Moors in Spain, but to commemorate the adventure and the honour done to the family, the name was changed from Locard to Lockheart and later abbreviated to Lockhart. A heart within a fetterlock was from then on included in the arms of the family with the motto “Corda Serrata Pando” – “I open locked hearts.”
Lockhart Clan History, http://www.brownlee.com.au/Pages/Lockhart%20Clan.html