John Barbirolli (English Wikipedia)

"Miscellaneous Intelligence", The Musical Times, 1 September 1910, p. 599 (subscription required)
"Royal Academy of Music", The Musical Times, 1 August 1916, p. 381 (subscription required)
"Music in the Provinces", The Musical Times, March 1921, p. 195 (subscription required)
Anderson, Robert, "Obituary, Sir John Barbirolli", The Musical Times, September 1970, p. 926 (subscription required)

manchestergalleries.org

"John Barbirolli" Archived 3 December 2008 at the Wayback Machine, Naxos records, accessed 7 February 2010

Performance History Search Archived 24 July 2014 at the Wayback Machine, New York Philharmonic archives, accessed 29 January 2011.

"Barbirolli Gives Youths' Concert",The New York Times, 19 December 1937 (subscription required)

Kennedy, Michael. Barbirolli, Sir John (1899–1970), Oxford Dictionary of National Biography, Oxford University Press, 2004; online edition, October 2009, accessed 7 February 2010 (subscription required)

Crichton, Ronald and José A. Bowen. "Barbirolli, Sir John (Giovanni Battista)", Grove Music Online, accessed 7 February 2010 (subscription required)
"Barbirolli, John (Sir Giovanni Battista Barbirolli )", Oxford Dictionary of Music, online version, accessed 7 February 2010 (subscription required)

"Sir John Barbirolli Memorial Foundation", Royal Philharmonic Society, accessed 12 January 2011

"School History" Archived 29 April 2014 at the Wayback Machine, St. Clement Danes School, accessed 27 January 2011

"Barbirolli, Sir John (Giovanni Battista)", Who Was Who, A & C Black, 1920–2008; online edition, Oxford University Press, December 2007, accessed 7 February 2010 (subscription required)

"John Barbirolli", EMI Classics, accessed 7 February 2010 Archived 4 January 2010 at the Wayback Machine
Performance History Search Archived 24 July 2014 at the Wayback Machine, New York Philharmonic archives, accessed 29 January 2011.
"The Barbirolli Room" Archived 4 September 2015 at the Wayback Machine, Bridgewater Hall, accessed 12 October 2014
"School History" Archived 29 April 2014 at the Wayback Machine, St. Clement Danes School, accessed 27 January 2011
The Barbirolli Society, accessed 1 February 2011 Archived 25 July 2011 at the Wayback Machine
"John Barbirolli" Archived 3 December 2008 at the Wayback Machine, Naxos records, accessed 7 February 2010