In 1858, at the suggestion of Judge Dunkin, who, at that time, was member for Drummond and Arthabaska, and who intended residing in Drummond county (and his father having just arrived from England and purchased a farm in the neighbourhood of Drummondville), he left his practice in Montreal and came to Drummondville, which was then nothing but a deserted village in the middle of the woods and out of the world, although practically the _chef-lieu_ of the then newly constituted district of Arthabaska, the only resident lawyers living there; now, thanks to the railroad, Drummondville is a thriving village of two thousand inhabitants, with flourishing manufactures and magnificent water powers, but has lost its pre-eminence in law since the erection of a court house at the _chef-lieu_, and the formation of a resident bar at Arthabaskaville. Mr. Dunkin, however, being defeated afterwards by J. B. E. Dorion, _l’Enfant Terrible_, obtained a seat in Brome county and permanently settled in that county at Knowlton. In 1867, on the death of _l’Enfant Terrible_ (the then member for Drummond and Arthabaska), shortly before confederation, Mr. Hemming was invited by a large number of the electors to become a candidate for the Quebec legislature under confederation, and although he was opposed by the late Judge Dorion (a brother of _l’Enfant Terrible_), on the Liberal side, and by N. Hébert, as a French Conservative, he had a majority over both candidates combined, and stood at the head of the poll with nearly two hundred majority, and this, notwithstanding that the constituency was five-sixths French. During that parliament he took a prominent part in inaugurating the railway fever of that time and the government policy of subsidizing the railways consequent thereon. He obtained a charter for what is now the northern branch of the South Eastern Railway, under the then name of the Richelieu, Drummond and Arthabaska River Railway, one hundred miles in length; successfully (for every one but himself) promoted the scheme and constructed the road, was elected president of the company and gave to L. A. Sénécal the first railway contract he ever had, and finally transferred the road to the South Eastern Company on certain conditions which, we regret to say, were never fully carried out. He also greatly developed the two counties by opening up colonization roads; and took an active part in revising the municipal code. During this time he was elected president of the Agricultural Society of the county of Drummond, No. 1, and held the office until the society was constituted for the whole county. In 1870, a vacancy occuring in the lucrative office of prothonotary for the district of Arthabaska, the Hon. M. Chauveau, the then premier, nominated him to the same, but a difficulty arising in connection with the Hon. G. Irvine, who was then solicitor-general in the Chauveau administration, and who represented a portion of the district, in order to oblige Hon. M.