'Mustering out' was the term for official demobilisation. The CV would always show what date the soldier was 'mustered out'.
There may also have been the term 'Muster Parade' for the morning inspection of the men in the rifle-ranks.
Chat with our AI personalities
He has joined (or been drafted) into a specific unit and placed on their muster role.
Like any other soldier, he would have to be demobilised in an orderly fashion.
The last muster of the Grand Army of the Republic occured on 4 July 1946 in Gettysburg Pennsylvania.
Civil War
Do you mean the Spanish Civil War or the American Civil War?