No worries.....I'm always in and out of Townsville/Ravenswood history as, although we now live in Toowoomba, I was born and raised in Townsville and my father's family came from the Charters Towers/Ravenswood area. My paternal great grandfather is buried in Ravenswood.
I'll keep my eyes peeled for anything that might relate to your O'Grady/Faulkner line. I did find that a John O'Grady was deleted from the Townsville electoral roll in 1915 as 'left' and he was a labourer who was apparently living in Morris St around 1910.
I don't know if you are familiar with Townsville but Morris St is on the perimeter of the city area and would not doubt have been one of the earlier settled ones, quite likely having boarding houses. My maternal great grandparents actually ran a boarding house in nearby Walker Street.
I wonder why I can't locate Bessi'es marriage in the online indexes? Maybe the transcription is incorrect. However, those three births for Susan McPartland definitely fit in well for your three people ...maybe her nickname was Lucy (or Suzie???).
When and where did Bessie die?