Just some food for thought but....
in many areas hogs were introduced by pickup truck...no doubt about that! In Danny's area it was done to increase places to hunt hogs with dogs since the hogs were actually restricted to about 4-5 properties along the rivers where access was very restricted if done legally...Now some years later and in a large number of instances they were placed on a property and the hog supplier had been contracted and paid to do so by the landowner and/or outfitter (in most cases a well to do landowner).
Today there is no longer a need to help stock hogs anywhere...with the introduction of the dominant, Eurasian bloodlines pigs can now FLY!!! LOL