Background
Selby was the son of Sir John Selby of Twizell.
Selby was the son of Sir John Selby of Twizell.
He was educated at Peterhouse, Cambridge in 1573.
He was re-elected Member of Parliament for Northumberland in 1601. He was knighted in 1603 and was High Sheriff of Northumberland in the same year. He was Sheriff of Northumberland again in 1606.
He was gentleman porter of Berwick in succession to his father.
Selby married Dorothy Bonham.
In 1597, he was elected Member of Parliament for Northumberland.