There is a marine death register entry for Charles Wm Grant, aged 38, assumed drowned 29 June 1883. He was master of the ship "Two Friends".
There are news reports circa February 1884 of the ship Two Friends, of Jersey, master Grant, being missing. She sailed from Rio Grande Do Sul for Falmouth on 29 June 1883 (for orders, with salted hides and horns)and was never heard of again.
The Two Friends was ship number 76256.
Will check for other Grants missing on the same vessel...