[1] Against Victoria in April 1893, he took 5/124 from 31 overs while opening the bowling, the first five-wicket haul by a Western Australian bowler.

[2] Duffy had previously played in a first-class game in 1887, a match in Melbourne between "Smokers" and "Non-Smokers".

[4] In 1897, Duffy umpired an exhibition game between George Giffen's XI and a Western Australia XVIII, featuring a number of national players, including Joe Darling, Clem Hill, Syd Gregory and Ernie Jones.

The Western Mail said he "fulfilled every duty appertaining to the position with the utmost satisfaction to everybody concerned.

"[5] Duffy was also a noted footballer for Rovers and West Perth in the local competition.