[1][2] In the February 1974 and October 1974 elections, Aspinwall was the Liberal Party candidate for Kingswood in the rural county of Avon, coming third in both.
He changed his allegiance to the Conservatives in 1975 as "the priority was to defeat socialism"[2] and was elected as the Member of Parliament for the seat in 1979, beating the Labour incumbent, Terence Walker, by 303 votes.
He won a scholarship to Prescot Grammar School, but his mother died when he was 14 years old and he went into care.
While stationed in Wiltshire in 1954, he met his future wife, Brenda Squires, whom he married in 1954.
Jack Aspinwall died of cancer at Willsbridge, near Bristol, England, on 19 May 2015, aged 82.