Cant find David but;
You may already have these.
Christenings, Row, Dunbarton;
MARY Service, 4 Feb 1765
KATHRINE Service, 5 Dec 1768
ROBERT Service, 16 Jan 1771
ANN Service, 15 March 1773
Parents, ROBERT Service and KATHRINE McFARLAN
(Familysearch.Org)
Marriage;
Robert SERVICE/Katharin McFARLIN, 8 December 1761, Row, Dunbarton