The newspapers certainly weren't at all reliable with the spelling of players' names back in those days, so it's very likely that any discrepancy can be put down to that. A few references to Mullins can be found, but many more seem to have Mullens. Any official records I've checked have Mullens, as well. He was T. Mullens in the Football Record when he received his permit to go from Footscray to Carlton in 1926.
BDM does have it as Mullens when he died in 1961:
Event Death
Event registration number 14850
Registration year 1961
Personal information
Family name MULLENS
Given names Thomas Patrick
Sex Male
Father's name MULLENS Thomas
Mother's name Isabella (Mckenzie)
Place of birth BALLARAT
Place of death FOOTSCRAY WEST
Age 61
This is an old thread I stumbled across but I thought I would reply anyway.
The spelling is indeed Mullens not Mullins. The reason I know this is Tom Mullens was my Grandfather's brother. He played for Footscray for a number of years in the VFA, was full forward for Footscray in the VFA/VFL championship of Victoria match against Essendon played on 4th October 1924 which Footscray won. And as noted earlier, he was one of the inaugural players for Footscray when they joined the VFL in 1925 before crossing to Carlton to finish his career.




