Ottoson, Elvin (1941). Minns du det än... : ett avsnitt ur operettens historia. Stockholm: Fritzes bokförl. sid. 49-51, 194. Libris1404046
The Penguin guide to the 1000 finest classical recordings : the must have CDs and DVDs. London: Penguin Books. 2011. Libris12532581. ISBN 978-0-241-95525-3
lily-elsie.com
Original theatre programme from Daly's Theatre, available at "The Merry Widow. 8 juni 1907", Miss Lily Elsie website, accessed 24 January 2016