Hi Diane,
Glenadagh is in Kilfian Parish and in the district of Crossmolina. I do have a few Morrisons that were entered in the Church of Ireland register (which covers a good amount of North Mayo, including Kilalla) LDS film # 897365
YEAR MONTH NAME FATHER SURNAME MOTHER SURNAME RESIDENCE
1778 CONFIRM And Morrison
1803 18-Jan Jane Jas Morrison Ann Annagh,Kilfian
1803 13-Feb Mary John Morrison Eleanor Rathmore
1804 CONFIRM Eleanor Morrison
1807 none MARR Matt Morrison Mary Shannon Bglan,Keerglan
1807 Feb MARR John Morrison Mgt Morrison Glenadagh,Kilfian
1815 15-Jan MARR Matt Morrison Mary Shannon Glenadagh,Kilfian
This one, below, is the only Morrison entry in the Catholic Register:
YEAR PAGE MONTH CHILD FATHER SURNAME MOTHER SURNAME
1807 IGI 28-Feb MARRIAGE Thomas O'Donnell Ann Morrison
As far as port of departure goes I can't say for sure. People from Mayo left from Killala, Galway, Queenstown (Cobh) or even went to Scotland then possibly to English ports. In the 1840s there are very few ways to determine is found might have found the correct family in the Emigration papers because the passenger lists were so vague- first and last name, sometimes an age, where they were from-which would be listed as Ireland
. Not much else.
Diski