Hi,
8 Dec 1864 James McCully married Martha Fulton in Dungiven Presbyterian Church.
5 Apr 1870 James Fulton married Jane Scott in Limavady 2nd Presbyterian Church
7 Nov 1906 William Cochrane married Martha McCully Fulton in Dunboe 2nd Presbyterian Church
22 Nov 1934 Andrew Hall Currie married Martha Quigley Fulton in Ballykelly Presbyterian Ch.
11 Dec 1935 William Greer McCollum married Jane Scott Fulton in Ballykelly Presbyterian Ch.
11 Oct 1922 James McCully Fulton married Kathleen Cherry Conn in Ballykelly Presbyterian Ch.
22 Mar 1899 Hugh Curry married Mary Scott Fulton in Dungiven Presbyterian Ch.
I can find two marriages for Joseph in the Dungiven area
7 Jun 1880 Joseph Fulton married Elizabeth Fulton in Bovevagh Presbyterian Church
11 Feb 1896 Joseph A. Fulton married Rebecca Rogers, a widow with 5 children, in Dungiven Presbyterian Church.
Regards