Hello again,
As you know, William Henderson ( spouse of Agnes McGill ) died in 1867?
On his death cert, his father is named as Peter, and his mother as Agnes Thomson.
I am assuming, for the moment, the mothers name is an error as that is his wife Anne's mothers name.
Now, on the 1851 census he lists his birthplace as Crawfordjohn, Lanarkshire.
Scotlands people have a copy of a Parish record of a Peter Henderson and Marion Thomson giving birth to a Margaret Hsn in 1813, a william Hsn in 1816 and a Peter Hsn in 1818.
The births are recorded in Abington Crawfordjohn.
These names are used widely in the family and are in a customary order.
I think this is his family.
Any thoughts on the matter?