He was educated at Westminster School and Christ Church, Oxford where he received the Boulter Exhibition in Law and graduated with an honours degree in jurisprudence.
[6] Although originally affiliated to the Liberal Party, having been a prospective parliamentary candidate for North Dorset, by 1928 he had moved to the Conservatives.
In 1908 Lewis entered local politics when he was elected to St Marylebone Borough Council at a byelection.
[1] Lewis was the owner of Beechwood, a Grade II listed Georgian house in 11 acres of grounds in Highgate, north London.
[11] He died at Beechwood on the 12th February 1966, aged 78,[3] and is buried on the western side of Highgate Cemetery, on the main path near the entrance to the Egyptian Avenue.