Before 1806 Bishop Joseph Allen (age 36) was appointed Private Secretary to George John Spencer 2nd Earl Spencer (age 47).

Before 1806 Bishop Joseph Allen (age 36) was appointed Tutor to John Charles Spencer 3rd Earl Spencer (age 54) which post he held until 1836.

On 04 Oct 1806 Bishop Joseph Allen (age 36) was appointed Prebendary Westminster Abbey.

In 1829 Bishop Joseph Allen (age 59) was appointed Vicar of St Bride's Church.

In 1834 Bishop Joseph Allen (age 64) was appointed Bishop of Bristol.

In 1836 Bishop Joseph Allen (age 66) was translated to Bishop of Ely.