ISBN 0-7146-2051-3. ↑ The History of Scottish Poetry. Edmonston & Douglas. 1861. p. 539, footnote 4. ↑ Laughter causes death, The Argus (October 18, 1920) ↑ Died of Laughter, The Register (October 18, 1920) ↑ Death Follows Laughter., Mudgee Guardian and North-Western Representative (October 21, 1920) ↑ Died Laughing., The Sydney Stock and Station Journal (October 22, 1920) ↑ "The Last Laugh's on Him".