Sworn of the Privy Council and promoted Lord Justice of Appeal in 1944, he was appointed Lord of Appeal in Ordinary in 1947 and created a life peer with the title Baron Morton of Henryton, of Henryton in the County of Ayrshire.
Sworn of the Privy Council in 1944, he was Lord Justice of Appeal from 1944 to 1947. On 18 April 1947, he was appointed Lord of Appeal in Ordinary and was created a life peer with the title Baron Morton of Henryton, of Henryton in the County of Ayrshire.