Entries on trees on Ancestry often have Manchester, Jamaica, I think, if the place has only been entered as ‘Manchester’.
In case you didn’t know he is buried in Blackley Cemetery.
https://www.burialrecords.manchester.gov.uk/There are several A Ns born 1955 so you would need to check the marriage certificate for his father’s name. There is one in Manchester though.
https://www.freebmd.org.uk/There is a mother’s surname, you have that already, but although there are several marriages in the years to 1955, none are in Manchester so again, you would need a birth certificate for further details.