1803 Born in Stoke-on-Trent, son of Robert and Elizabeth Hamilton[1]
A Mr Hamilton was a draughtsman with Boulton and Watt in the early part of the 19th century
1841 Engineer, living in Birmingham with Robert Hamilton 19, also an engineer[2]
After the death of James Watt (Junior) Hamilton became a partner in the firm of James Watt and Co
1851 Engineer, living in Handsworth[3]
1860 Gilbert Hamilton, James Watt and Co, Soho Foundry, Birmingham.[4] joined I Mech E.
1861 Engineer, living in Handsworth with Charlotte 42, Gilbert 4, Catherine 5[5]
1871 Civil engineer, living in Lillington, Warwickshire, with Charlotte B Hamilton 53, Catherine Hamilton 15[6]
1881 Retired Civil And Mechanical Engineer, living in Lillington with Charlotte B. Hamilton 63 Catherine Hamilton 25[7]
1882 Died in Warwick