1693 – Allen was baptised on July 24, 1693 at St. Columb Major, Cornwall.
1706 – At the age of thirteen, he started working at the Post Office.
1710 – Became a clerk in the Bath Post Office.
1712 – Promoted as the Post Master of Bath.
1725 – Elected as a member of the town council.
1738 – Gave money and supported the building of the Mineral Water Hospital.
1742 – He built the Palladian mansion Prior Park and was elected Mayor of Bath.
1757-1764 – A member of Parliament of for Bath for seven years. On June 29, 1764, died at the age of seventy-one.