In December 1844, Hardy traveled to England as a church missionary with Wilford Woodruff, Dan Jones, and Hiram Clark. Hardy was stationed in Preston, Lancashire, and was made the conference president in March 1845. Hardy contracted cholera but survived.
In Utah, Hardy was made a bishop of two different wards.
On October 12, 1856, Hardy was called to be the first counselor to the church"s Presiding Bishop, Edward Hunter. When Hunter died in 1883, William B. Preston became the new presiding bishop and Hardy was again selected as the first counselor
However, after just a few months working under Preston, Hardy died in Salt Lake City and was buried at Salt Lake City Cemetery. Hardy practiced plural marriage and was the father of 18 children.