E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Thin Red Line (The).
The old 93rd Highlanders were so described at the battle of Balaclava by Dr. W. H. Russell, because they did not take the trouble to form into square. Balaclava is one of the honour names on their colours, and their regimental magazine is named The Thin Red Line.