PS I found the convict ship Rolla sailed from Cork City Ireland on 4 November 1802 (is that the port Queenstown as per Titanic stopped there to pick up passengers) bound for Port Jackson arriving in 1803. This is the only possible ship. I checked all years around that time of convict ships into OZ and where the convicts came from and where the ships sailed from. Info in our song at:
It took 4 months to get there. The route is on a map in the video.

Sorry going off track a bit here from Jamie Raeburn. Is there a back home in Derry post by the way.

Also does anyone know Im getting confused about where these ships actually sailed to : Botany Bay, Port Jackson (Sydney) whats the diff ? did any go straight to Van Diemen's Land (Tassy to Ozzies call it ie -Tasmania) or stop in Sydney or Melbourne first ?

PS I lost interest in the song as started to get fascinated by the emigration route since Ive pretty much done the same : London to Sydney when I emigrated but on a Pan-Am and United Airlines jet !!! (see going off track again !)

sláinte , slán go fóill.