Question: When did the line infantry regiment that Gordon Holmes Alexander MacMillan was appointed acting adjunct to cease to exist due to amalgamation?
Sentence (from "Argyll and Sutherland Highlanders"): The Argyll and Sutherland Highlanders (Princess Louise's) was a line infantry regiment of the British Army that existed from 1881 until amalgamation into the Royal Regiment of Scotland in March 2006.
Relevant evidence: Yes