Looking for connections to the following McQuiston family:

Hugh McQuiston (1827-1907), s/o Hugh McQuiston and Mary WILSON, and his wife Anne COULTER (1833-1920), d/o Archibald COULTER and Elizabeth McWHIRTER, all of Ballantrae, Ayrshire.

Their son:
Thomas McQuiston, b1868 Ballantrae, d unknown date after April 1926 at unknown place, m 1896 Garleffin, Ballantrae Parish, Agnes Kennedy BAXTER b1866 Ballantrae, d unknown date before Apr.1926 at unknown place, d/o Martha BAXTER.

Children of Thomas McQuiston and Agnes BAXTER:

Janet Hart McQuiston b 1897, d bef.1901 Ballantrae
Annie COULTER McQuiston b 1898 Ballantrae
Archibald COULTER McQuiston b1899 Ballantrae

Thomas McQuiston, b 1900 Ballantrae, d ?, m 1926 Girvan, Ayrshire, Elizabeth McWilliam ADAMS, b 1904 unknown place, d 1929 Girvan, Ayrshire, d/o James Miller ADAMS and Agnes McLean DUNLOP.
Possible children unknown.
Possible remarriage of Thomas unknown.