Jess Oppenheimer, Laughs, luck... and Lucy: how I came to create the most popular sitcom of all, 1999, Syracuse University Press, pp.90-91, ISBN9780815605843; excerpt at Google Books
bullfrogspond.com
Pop chart data 1890-2011, spreadsheet from Billboard magazine sources, downloadable from Bullfrogspond.com retrieved 30 October 2011. This has Lombardo reaching #1, Arnheim #2
nla.gov.au
catalogue.nla.gov.au
Sheet music for "So Rare" typically credits words to Jack Sharpe and music to Jerry Herst. See, for example So Rare [music], words by Jack Sharpe, music by Jerry Herst, Melbourne: Allan & Co., c1937, held in National Library of Australia, Bib ID 1862893
See Label shot at technodisco.net, retrieved 2 November 2011: The label on the original Fraternity 45rpm record F-755 shows "JIMMY DORSEY" prominently, followed by small print "with Orchestra and Chorus"
