Thanks for the info. The first Caldwell is my relation (brother of my GG Grandfather) I have 8 children in all including those you have mentioned. By 1881 they appear on the Census living in Glasgow. A WW1 pension document for his eldest son James gives some info on further descendants and Caldwell's location in 1914 but there after the trail appears to go cold. I too spotted the second Caldwell and interesting that such an unusual name should appear at around the same time.