Robert Morton & which of these two potential wives? NEW MONKLAND

[ThumbelinaPM]

Hi, can anyone help me as I am a bit stuck?

I am tying to work out who the parents of my ancestor, ROBERT MORTON:
born 26 June 1826
died 19 Jan 1903
married Elizabeth RENNIE on 6 Sept 1844.

SP brings up the 2 choices in the attached image:
Robert Morton and Mary (Ann) Jackson both of Rutherglen
OR
Robert Morton and Mary Campbell both of Rutherglen

I will need to buy these certificates but before I do, is there a way I can be sure of which couple are Robert Morton's parents?

Thanks in advance.

[softly softly]

If Robert died 1903 his death record intimates his mother's maiden name as Jackson

MORTON
ROBERT
76
JACKSON
M
1903
644 / 1 / 85
BRIDGETON

SS

[ThumbelinaPM]

Thanks you so much; I have bought those certs now.
Much appreciated.