He was elected as a Member of Parliament ( MP ) for North Derbyshire at a by - election in July 1853 , and held the seat until he stood down at the 1865 general election .
Thornhill became High Sheriff of Derbyshire in 1836 .
Thornhill was elected as a Member of Parliament ( MP ) for North Derbyshire at a by - election in July 1853 , and held the seat until Thornhill stood down at the 1865 general election .
Thornhill became High Sheriff of Derbyshire in 1836 .