1911 Encyclopædia Britannica, Volume 13… (1911)
“ He took it to London and submitted it to Garrick for representation at Drury Lane, but it was rejected as unsuitable for the stage. The tragedy of Douglas was suggested to him by hearing a lady sing the ballad of Gil Morrice or Child Maurice (F. J. Child, Popular Ballads, ii. 263) . The ballad supplied him with the outline of a simple and striking plot. After five years’ labour he completed his play, which he took to London for Garrick’s opinion. It also was rejected, but on his return to Edinburgh his friends resolved that it should be brought out in that city. ”
