Vic Venters had a "Guncraft" article regarding the Hunter One-Trigger in the March/April 2010 Shooting Sportsman, which was (by permission) reproduced in the Journal of the LCSCA in 2020 https://books.google.com/books?id=rX8YAwAAQBAJ&pg=PT42&lpg
July 21, 1901 Sporting Life 1901 GAH at Targets report Mr. A.E. Lard was introducing the Westley Richards single trigger guns. It had detachable locks and was a fine piece of gun mechanism.
Shooting and Fishing, October 20, 1904, p. 30 The advent of the Hunter one-trigger action into the world of practical inventions marks a new era in gun construction. For the past three years the Hunter Arms Co., of Fulton, N. Y., makers of the famous and deservedly popular L. C. Smith shotgun, has not only been using, but it has also been abusing its one-trigger device, submitting the mechanism to the severest tests under conditions that were certain to develop any possibly undiscovered defects, conditions sufficiently extreme and purposely imposed to prove beyond the shadow of a doubt that the new gun could never be made to double or balk. The following illustration shows the simplicity-of the Hunter one-trigger mechanism. It will be noticed that the parts are few and strong, a necessity in- these days of excessive loads of nitro powder. It will also be noticed that the entire mechanism while strong is wonderfully simple. The action of the device is positive and not dependent on friction in any way, which is an essential feature of great importance, as the locks of all guns, no matter how carefully they may be looked after, are apt to get more or less dirty and gummy, and it was discovered by the Hunter Arms Co., very early in its experimenting, that any one-trigger lock dependent upon friction would both balk and double. After a long series of exhaustive tests the company, therefore, determined that nothing short of a purely mechanical device would produce positive and absolutely certain results every time the trigger was pressed. The Hunter Brothers have always been extremely conservative in either adding to or taking away from the mechanism of the L. C. Smith gun, and this policy has been strictly adhered to in adapting the Hunter one-trigger for use in this gun, and the device can therefore be applied to all L. C. Smith guns, no matter whether of the older or newer types, as its introduction requires no change in the mechanism of the locks adopted by this company as a standard many years ago, and which, owing to their simplicity of construction, durability, and general excellence, have since become famous the world over. A handsome new catalogue has recently been issued in which the Hunter one-trigger is shown to advantage, and in which its mechanism is described in detail.
Oct. 22, 1904 https://digital.la84.org/digital/collection/p17103coll17/id/37756/rec/1 The Hunter Brothers, who are owners and manufacturers of the L. C. Smith gun and represented by the genial Harvey McMurchy, make a strong combination of capital and brains. Anything "Mack" says goes with the Hunters, and as the time seemed ripe for a perfect one-trigger, the word was given, and after three years of the most exhaustive possible tests the Hunter one-trigger is offered to the shooter as the result. This company has the reputation of always being absolutely sure of any improvement on the Smith gun before offering it to the sportsman, and the new one-trigger is no exception to the rule. We are assured that it has been used and abused in more ways than the ordinary shooter could think of, and has never once failed to meet the unusual work demanded of it. Mr. John Hunter claims that they have had the Hunter completed for the past three years and are only now offering it to the trade when they know beyond any possible question of a doubt that it will work, and work every time. The one-trigger catalogue will be sent to our readers on application. It gives a full description of the Hunter one trigger, showing working parts, and is illustrated with shooting scenes, showing the advantages of the one-trigger on a double-barrel shotgun. Everyone interested in the one-trigger should send for this booklet to the Hunter Arms Co., Fulton, N. Y.
December 31, 1904 https://digital.la84.org/digital/collection/p17103coll17/id/37858/rec/1 The features of the Hunter one-trigger hammerless are set forth in the following: The Hunter one-trigger is simple; only three important parts and each part is large and strong. The Hunter one-trigger is not frictional in any way; the action is positive and will work every time. It is an impossibility to double the Hunter and it cannot be balked. It is selective. You can at your pleasure shoot right and left, left and right, all rights, all lefts. We have had the Hunter one-trigger completed for over three years. We have rusted it. We have gummed it up; we have used it and abused it. We know it is perfect. As you know, we produce the Smith hammerless guns in twenty different grades, ranging in price from $25 net to $740 list. We make each grade with the automatic ejector. The Hunter one-trigger can be put on any Smith gun new or old. We would be pleased to answer your inquiries. Hunter Arms Co., Fulton, N. Y.
January 13, 1906 https://digital.la84.org/digital/collection/p17103coll17/id/36335/rec/2 The Hunter Arms Co., Fulton, N. Y., has issued the following announcement: The Lewis and Clark Exposition has recently honored our product by awarding a gold medal on both the Smith gun and the Hunter One-Trigger. This medal is the highest award given and we feel particularly proud of the achievement, as the committee conferring the honor was composed of gun experts and the decision was given in our favor in the face of the keenest possible competition. Our entire product during the year just past has attained successes of far-reaching importance. At this Christmastide we would extend to you our message of "Peace and Good Will." May 1906 find you brimming with vigorous health and strength, and assuring you of our kindest best wishes, we remain, Yours very truly, The Hunter Arms Co., John Hunter, Secretary.
February 24, 1906 https://digital.la84.org/digital/collection/p17103coll17/id/36628/rec/8 Judging from the large number of inquiries and letters received recently in regard to the matter of the gold medals awarded the Smith gun and Hunter One-Trigger by the Lewis & Clark Exposition, it would, seem as if a statement as to the exact truth in the matter would not be out of place. The L. C. Smith was the only gun awarded a gold medal by both the Expert and Superior Juries and the Hunter Arms Company has good reason to feel proud of this award, as the Expert Jury was composed of gentlemen of wide experience, both practical and theoretical. For instance, Major Hittinger is a government official and has charge of the testing of government guns. Senator R. D. Inman has been an enthusiastic sportsman ever since he was a boy and is at present the owner of both Parker and Scott guns. Captain Meyers has been familiar with guns for several years and is thoroughly conversant with gun mechanism and shooting in general. The gold medal awarded was on mechanical construction and remarkable simplicity of the Smith gun as well as the Hunter One-Trigger.