Hilliard purchased the two parts of the manor of Cowley in 1786 and 1789.
After Addington’s resignation, Hilliard wrote to him on 5 May 1804,
During the very short time I have been in the House, I have, as you told me the latter end of last session, attended closely, and seen a great deal of interesting public business. Since that period I have been equally a constant observer, and it is my decided opinion that had the gentlemen who composed your administration shown a greater exertion of talent, and a proper complacency of manners, your honour, integrity and ability would have effectually resisted any conjoined efforts of the members of opposition.
He added that he had never solicited, directly or indirectly, any favour from Addington, voting with him ‘from real approbation and principle’.
Hilliard did not stand at the general election of 1806. He died 18 Dec. 1815.
