hi William
i have Thomas Periam b1785 i take it that he was a brother of your Herbert William, Thomas was married to Elizabeth Heywood b c 1785, they had 2 children that i know of they were Henry 1810 born in London and Louise b1815 in Edmonton Middlesex, Henry married Ann Thomas they had 7 children, One of which was Harriet who was my husbands Great grand mother.
If you want more details get back in touch
Mary
