Hi,
There was a marriage of Samuel Smyth, father John, to Susan McClean, father John Mawhinney McClean, in Felt Street Salvation Army, Shankill Belfast on 1 Jan 1894.
However I can also find two other marriages of a Samuel Smyth close to that year. One to Susan Harding in 1893 in Trinity Church of Ireland, Shankill and the other in 1891 to Susanna Edgar in Agnes St, Methodist Church, Shankill.
Regards