What was the population of one of the suburbs of Melbourne that this steam era railway line ran through?
Inner Circle railway line:  It served the inner-northern suburbs of Parkville, Carlton North, Fitzroy North, and Fitzroy. Parkville, Victoria: Parkville is an inner suburb of Melbourne, Victoria, Australia, 3 km north of Melbourne's Central Business District. Parkville, Victoria:  At the 2016 Census, Parkville had a population of 7,409.
i don't know