What we have found out so far is:
Thomas Samuel Cassidy was born 17th March 1886 in Kilrea, County Londonderry, Northern Ireland. We know when he went to the US etc as we found the information.
He was married three times
1st was to Mary McNicol in Kirkintilloch, Scotland
2nd was to Martha McClathie which was also Scotland
3rd was Ellen Henry
Though he had one daughter with Martha who was called Margaret Ethel who we have been trying to trace as she is the one that would be directly connected to us. From what we found she married a Robert Howard Orr in 1942.
We have found when Martha went to the US to be with Thomas, and know she was previously married with children.