So (as Ann Wilson sang), the first put up in the digital library of historic environmental regulation assortment is on A New Treatise on the Authorized pointers for Preservation of the Sport, first revealed in 1764; the second model, accessible on-line, was printed in London in 1766 by His Majesty's Regulation Printers.
The title net web page offers the author as "a Gentleman of the Middle-Temple"; acknowledged gentleman was apparently one Timothy Cunningham, a prolific author of regulation books in eighteenth century Britain.
The title of "Gentleman" may need been about larger than manners or class, as a result of the prolonged title of the treatise has this rationalization (Oklahoma!, anyone?): "Containing All the Statutes, Cases at Large, Arguments, Resolutions and Judgments relating to it; equally useful to the Gentleman and Farmer; as a result of the Gentleman may study the best way far his Privilege extends, and the Farmer is also enabled to know when the Gentleman exceeds the Limits prescribed by Regulation, and the proper Methods of Redress." So the author ought to have been one factor of a "sporting gentleman" (as he locations it on inside the "Business") himself, not merely a disinterested scholar.