I did see 295 Hamilton Avenue listed on his death certificate. I corrected the date on Family Search to October 26 which is given in the document. He must have been a fine strong fellow to live to 100 like that.
I was not able to find much on Dennis, only this little entry on a Grand Banks page:
April 19 1801- married William Ennis of the City of Dublin and Mary dau. of Dennis and Elizabeth Hone of Salmon Cove in this district
I also found this page with a possibility to check out:
http://ngb.chebucto.org/Parish/ang-bap- ... 0-tb.shtml" onclick="window.open(this.href);return false;
Baptism of James Hone born in Salmon Cove June 9, 1800, listing father James Horn (born in Salmon Cove in 1773) and mother Joan Stivey (born 1777 Salmon Cove). Also baptism of his sister (born Feb 10, 1798). Family Search lists married 1798.
I didn't find more about James born in 1800 but that would put him in the age range to be William's father.
I'll post again if I find anything else. I'm just hitting brick walls on my own Smith and Mitchell-Portugal Cove so I'm happy to help.