IGI has the following children for John Laing and Elizabeth Taylor:
RACHEL LAING
Christening: 30 AUG 1719 Carnbee, Fife, Scotland
JANET LAING
Christening: 18 MAR 1722 Carnbee, Fife, Scotland
MARGARET LAING
Christening: 10 MAR 1728 Carnbee, Fife, Scotland
MARJORY LAING
Birth: 17 MAR 1734 Carnbee, Fife, Scotland
ELSPETH LAING
Christening: 29 FEB 1736 Carnbee, Fife, Scotland
AGNES LAING
Christening: 24 SEP 1741 Carnbee, Fife, Scotland
Marriages for John Laing and Elizabeth Taylor:
JOHN LAING
Marriage: 11 OCT 1718 Kilrenny, Fife, Scotland
JOHN LAING
Marriage: 12 OCT 1718 Carnbee, Fife, Scotland
Nothing on a Hugh Laing whatsoever, but there are large gaps between the birth of their children, so who knows?