Possibly Harrison Family Tree

Are these the parents of Gilbert Harrison & Margaret Jane Hughson???

Arthur Harrison married Christian Porteous b. 24 Jun 1806 Northmaven, father Gilbert Porteous

children: Gilbert Harrison b. 3 Mar 1834 d. April? 1882 at sea

James Hughson b. @1800 d. 13 Nov 1879 Muir married 31 Dec 1829 Northmaven, Margaret Anderson b. @1802 d. 20 Oct 1881 Muir

children: Margaret Jane Hughson

James Hughson married Agnes Halcrow parents of above James Hughson