The Horners were settled at Mells by the fifteenth century, and rose to county status after investing heavily in ex-monastic lands after the Dissolution. Horner’s father, the first MP in the family, sat for Somerset in 1584 and 1586 and was a deputy lieutenant at his death.
Horner was returned for Somerset himself at the 1626 election. The sheriff, Sir Robert Phelips* secured the election of Sir Henry Berkeley for the senior seat, while Horner, a Poulett supporter, was chosen to balance the ticket. He left no trace on the records of the Parliament. During the 1630s Horner was considered so disaffected in matters of religion that in 1639 he was judged unsuitable for a second term as sheriff.
As sheriff at the end of the Civil War, Horner angered the Independent John Pyne* by securing the return of his son George as a Recruiter for Somerset. A religious and political Presbyterian himself, he refused to serve under the Rump, but returned to office under the Protectorate, serving as knight of the shire once again in 1654. He died on 25 Oct. 1659, leaving an incomplete will.
