This marriage register can be found (ref CR/7/3B/1) at PRONI. There is another register for a later period, whose information should be redundant (as all marriages in it should be recorded at the GRO).
The following text is handwritten on the verso of the front endpaper of the document:
solemnized by me
Protestant Dissenting Minister
York Street Chapel
This page was last updated 3 Sep 2016