He's still alive in 1869 as he appears on several crew lists around that period. Last seen on board ship called 'Russia'.
http://www.clydeships.co.uk/view.php?ref=22281and then
THE LONDON GAZETTE, OCTOBER 8, 1869.
Robert Amos, of Derby-road, Bootle, in the county of
Lancaster, Ship Steward, having been adjudged bankrupt
under a Petition for adjudication of Bankruptcy, filed in
Her Majesty's Court of Bankruptcy for the Liverpool District,
at Liverpool, on the 5th day of October, 1869, is
hereby required to surrender himself to one of the Registrars
of the said Court, at the first meeting of creditors to
be held before the said Registrar, on the 9th day of November
next, at eleven o'clock in the forenoon precisely, at
the said Court, at Liverpool, Charles Turner, Esq., of
Central-chambers, South Castle-street, Liverpool, is the
Official Assignee, and Mr. W. H. Grimmer, of North John street,
Liverpool, is the Solicitor acting in the bankruptcy.
and then
Liverpool Daily Post 09 December 1869
BANKRUPTCY COURT, WEDNESDAY. (Before Mr. Commissioner Thring.) In re Robert Amos. —This bankrupt, a ship-steward, case was before the court a few days since and adjourned till this morning for him to file further accounts, did not appear; whereupon, at the ......
Also see 11 October 1869 - Manchester Courier and Lancashire General Advertiser -
It says he was from Bootle so would tie in.
However, his full story covering the last 15 years is in the Liverpool Daily Post 27 November 1869. You need to read that really.
