Lunn was a business man who operated as an ice cream vendor. Lunn would often sell ice cream from his van in the beachside suburb of Semaphore.
In 1920 Lunn was awarded an M.B.E. in recognition of his support of Australian service-men. An example of his support included providing 12,000 Digger with five shillings deriving from his fund-raising efforts.
Lunn would attend SANFL football matches as part of his fundraising efforts, in particular for Port Adelaide where he wore that team's lace-up guernsey and shouted rhymes and parodies to the amusement of spectators.
When he died, many shops in South Australia closed during his funeral procession.
↑"FOOTBALL". The Register (Adelaide). Vol.LXXXVI, no.23, 194. South Australia. 10 March 1921. p.8. Retrieved 28 August 2021– via National Library of Australia.
↑"Widow of Famous War Collector Dies". News. Vol.43, no.6, 597. South Australia. 20 September 1944. p.3. Retrieved 28 August 2021– via National Library of Australia.
↑"EMPIRE HONORS". Chronicle. Vol.LXIII, no.3, 344. South Australia. 23 October 1920. p.38. Retrieved 28 August 2021– via National Library of Australia.