Have you tried www.theshipslist.com, it is rare to find shipping lists from that age, it isn't necessarily that there wern't any but they have yet to be transcribed. There is an ongoing project called Emigration to North America 1847 on the website with different headings including
Grosse Ille.

You will find little about the 'big' ships that came from Ireland to Canada but the above website might have the steamboat records from Quebec to Montreal to Upper Canada.

I'm amazed you even have the ships name. I think Bark would be Bark/Barque - a type of boat and the name would be the Larch.
I don't know if that would help?

I'm sure you have read the history of Grosse Ille.

Annette Code