I have a James Rennie, born County Antrim about 1877 (the family were from around the north coast)
Father: William John Rennie, born 1851
Mother: Margaret Kennedy Rennie, born 1847, died 1908
The family moved to Scotland for a time, where James married and remained.
In 1897 James married Margaret Brennan. They had eight children that I can identify.
He is found in the 1901 census, age 24, living at 14 Cardwell Road, Gourock, Scotland.
Died in Scotland about 1920.
James had several siblings; most of those returned to Ireland, as did his parents.
I have other information on this branch, if interested please reply.