Clan Crozier is one of the border reiving clans of Scotland, along with the Armstrongs, Elliots, and Nixons. Some sources cite the surname as a sept

Sept

A sept is an English word for a division of a family, especially a division of a clan. The word might have its origin from Latin saeptum "enclosure, fold", or it can be an alteration of sect.The term is found in both Ireland and Scotland...

 of the Armstrong clan, but the Scottish parliament in 1587 identified the Croziers as a middle march clan.

Associated with The Death of Percy Reed

The Death of Parcy Reed

The Death of Parcy Reed is a Border ballad concerning the betrayal and murder of Percival Reed, believed to have been Laird of Troughend in Redesdale, Northumberland, in late 16th century England...

.

Coat of arms

The Crozier coat of arms shows four gold bees on a black shield along with a white 'hummet' cross. One possibly interpretation is as follows:

Gold: generosity and elevation of the mind
Green: Hope, joy, and loyalty in love
Black: Constancy
Bee: Efficient industry