I might have a connection here too. But I appreciate that Gilliland is an established name in the area.
My great-great-grandmother was Ann Gilliland who married George Woods on 13 March 1873 at Loughmourne Parish Church. Ann was 20 years old and lived at Aghmakerr, Parish of Aughnamullen. Her father was Joseph Gilliland, farmer. Her mother was Jane Gilliland, nee Nelson.
Joseph Gilliland died on 13 May 1887 at Aghmakerr, a farmer and widower aged 72 years. The death was registered by his daughter-in-law Lizzie Gilliland.
Lizzie Gilliland (under the name Elizabeth) is on the 1901 and 1911 census living with her husband, Joseph Gilliland, farmer at Ullinagh, Carrickatee. In 1901, Joseph was 46 years old; while in 1911 he was 59 years old. Their children include Andrew J Gilliland, Robena Gilliland, Agnes Gilliland, William Gilliland, Ricky Gilliland, Martin Gilliland and Eva Gilliland. In 1911, the family had a visitor: Thomas Turbitt, law clerk, aged 17 years.
Meanwhile, the 1901 census for Aghmakerr lists Sarah J Gilliland (aged 43 years), widow, and her niece Lizzie Wylie (aged 13 years). In 1911, the census had Sarah Jane Gilliland (aged 59 years), widow, with her niece Elizabeth Chambers (aged 22 years) and husband Henry Chambers (aged 29 years) plus their children.
In 1901, my great-great-grandmother Anne Woods nee Gilliland was in Glasgow with her children. The census shows the family had a visitor: Robert Gilliland, aged 21 years, police constable, born Ireland.
I expect that these Gilliland lines connect somewhere.
David