If there was only one child, born early in the marriage, and not the usual number for the time, that maybe suggests an early separation.
Gertrude seems to have been long forgotten by 1941 when the son married.
The Scotsman, 01 April, 1941.
COPLAND—RUNCIMAN. —At Barony and St James Place Church, Edinburgh, on 29th March, 1941, by the Rev. John E. McIntyre, John A. G. Copland, son of Mr J. R. Copland, 22 Gilmore Place, Edinburgh, to Joy Runciman, daughter of Mr. and Mrs. George Runciman, 23 York Place.
Jessie’s death notice reveals nothing.
The Scotsman, 21 March, 1944.
COPLAND.—At 22 Gilmore Place, Edinburgh, on 19th March, 1944, Jessie Inkster, aged 84, wife of the late Robert Copland. Funeral (private) to Dalry Cemetery on Wednesday, 22nd March. Friends meet cortege cemetery gate, 3 p.m.
Rex