In the period before Maine Road City fans also used to shout things like "Play Up City!" and also "Give It To Tommy [Johnson]"
I also have notes saying that City fans sang "Auld Lang Syne" on occasion in the 20s (presumably around New Year?) and I also know from research that if a player got married during the 1920s City fans would sing "For He's a Jolly Good Fellow" when he came on to the pitch.
In the 50s there was the City version of "Bless 'em All" and a song called "City Is The Team". Also I included a story in "Farewell To Maine Road" that included a quote from a fan who claimed that City fans used to shout when Dave Ewing did a good header "There's only one head bigger than Dave Ewing and that's Birkenhead!" - I don't know how popular this actually was though!
I also talk in that book about how City fans had stunned Utd fans in 1993 by singing "17 years and we're still here" - how time flies!
Back at Hyde Road in the 1890s journalists often talked of Hyde Road's 'Electric atmosphere' - considering how 'new' (you know what I mean) electricity was at the time this was highly significant and they basically meant that Hyde Rd's atmoshere was something exciting and powerful. Fans used to take musical instruments and wear fancy dress to liven up games in the 1890s.