Hi Allan
Do you already have this from the IGI site -
Alexander Crighton and Matilda Jackson were married 3 December 1860 Dundee, Angus, Scotland
They had the following children: -
Matilda Crighton – 5 October 1865 Dundee, Angus, Scotland
James Jackson Crighton – 7 March 1862 Dundee, Angus, Scotland
Isabella Sinclair Crighton – 21 September 1863 Dundee, Angus, Scotland
Maybe the sibling names will help you
All the best, Anne