1739 Born[1]
1769 Married Catherine Lambert in Workington[2]
1800 Brothers Adam Heslop, Thomas Heslop and Crosby Heslop, formerly associated with the ironworks at Seaton near Workington, established an iron foundry and engineering business on the seashore by the mouth of the Lowca Beck.
c.1830 Thomas died in Workington
By the mid-1830s the three brothers were all dead, so the investors in the business sold up, and the works was taken over by local iron mining partnership Tulk and Ley which began a long tradition of locomotive manufacture.