Hello cp,
This does not seem to fit with John being born in Ireland but seems John is hard to find in Scotland before his 1894 marriage.
Marriage: 19 Jan 1894; St. Marks Parish Church, Anderston, Glasgow,
Lanark, Scotland; after publication according to the forms of the Church of Scotland;
signed John Clements, quay labourer, bachelor; age 26; usual residence 32 West College Street, Glasgow;
parents Samuel Clements, joiner, journeyman and Catherine Clements M.S. Lawrie;
AND Euphemia McDonald, confection stand keeper, spinster; age 25; usual residence 13 Clyde Street, Glasgow; parents James McDonald, carter, deceased and Euphemia McDonald M.S. McPhee;
witnesses Walter Roy and Isabella Roy; certificate #44
Regards,
Dave