Hi Nik
Thanks for all that information.  
Charles A Jerrett's father George certainly sounds quite an interesting person. 
I have found that Charles A Jerrett was on a passenger ship from St Johns to New York in 1922 with a son, and his wife was still in Brigus, Newfoundland.   Can't find any more about him owning the 'Canadian'.
I tried the 1901 and 1911 Canadian censuses for Nova Scotia and can't find any Jerretts there.   I maybe need to access the ones for Newfoundland.
It was interesting that you mentioned them living in Toxteth, Liverpool in the 1891 (?) census.   I am trying to tie Charles A Jerrett in with Samuel Strong Jerrett who lived in Toxteth and was also a ship owner.   His father Robert Jerrett was a Master Mariner and travelled all over the world, including North America.
Joan