Norris Moore, advocate, acting Secretary of the Isle of Man and afterwards Deemster.

Lieutenant-Governor Shaw, forwarding his memorial to the Commissioners of Inquiry in 1791, described him as a gentleman of honour, of integrity and respectable talents, a lawyer by profession and among the first as well as the seniors of the bar, who filled his office with credit to himself and satisfaction to the public.

The office was the point of the memorial. He acted as Secretary in the Island with no establishment as to the office and no salary for the labour, holding it at the pleasure of the Governor or Lieutenant-Governor for the time being and living on what the passes and licences brought in. Before 1765 the secretaryship had been blended with the other offices generally held by one man. Shaw submitted to the Commissioners whether an office in itself necessary and important ought not to be put on a footing of more respectability. Moore's own petition and memorial is dated at Castletown on 5 November 1791.

He had already argued the Island's case in London. In 1790 the Keys sent him there with John Cosnahan as a deputation to oppose a Bill giving the Duke of Atholl further compensation for the loss of his sovereignty. Their petition to the Commons closed with a prayer to be heard by counsel, and Cosnahan made an able and brilliant speech at the Bar of the House.

He served in the Island's own forces. He is one of the captains of the South Manx Volunteers in the list of commissioned officers for 1810, under John Taubman as Lieutenant-Colonel Commandant.

As High-Bailiff of Douglas he went, in August 1811, to Lieutenant Hawkes of HMS Maria to ask his intentions towards the fishermen, and was given assurances that Hawkes then broke. He was afterwards raised to the bench as Deemster.