Hi there, I think I can help with the Cousers from Armagh. My great, great grandmother was Anne Jane Allison married to John James Couser in Burt Parish Church co Donegal.
They moved to Rostrevor and on of their daughters Anne Jane was my great grandmother and she moved to Scotland in 1904 when my grandmother Anne Jane McMahon was 6 years old.
Annie Jane and John Couser had several children including Sarah Mary, Elizabeth,Catherine, Anne Jane (my great grandmother), Emily and James et al.
I think Elizabeth and Catherine emigrated to Canada and my great grandmother and Sarah Mary both moved to Coatbridge, Scotland in the very early 1900's. I remember my father taking my grandmother back to Rostrevor to visit Emily (married name Heaton).
My great, great grandmother was Annie Jane Couser (nee Allison). Married in Burt Parish, Co Donegal to John James Couser they then moved to Rostrevor. Co Armagh. Children included Sarah Mary, Anne Jane, (my great grandmother), Elizabeth, Catherine (moved to Canada and became Martin) Emily, James et al.
My great grandmother moved to Coatbridge, Scotland around 1904 with 3 children - Frank, Jim and Anne Jane (my grandmother born 1898)