Montreal
Established since at least 1896 and the name in use until c.1915, but absorbed in Canadian Jewellers Ltd. in 1911.
The Hemming Mfg. Co. have purchased the business of the Hemming Bros. Co., Ltd., Toronto, Can., including the plant, stock, book-debts, orders and good will. It is their intention to confine their energies strictly to the manufacturing of jewelers’ cases and sundries and of regalia. The latter branch will he run separately as in the past under the name of the Dominion Regalia Co. The business will be under the management of H. K. S. Hemming who has been in charge of the Hemming Bros. Co., Ltd., since their inception. In addition to Mr. Hemming the company have obtained the services of Messrs. Rowland and Cole, both long and favorably known as the traveling representatives of the predecessors of the new company.
Source: The Jewelers' Circular and Horological Review - 13th May 1896
A JEWELRY COMBINE
Montreal. Oct. 23 - Canadian jewelers are the latest to form a merger, having just completed arrangements for the formation of a combine to be known as the Canadian Jewelers Ltd. capitalized at five millions. The following establishments are said to be already included among them being: Wm. Bromley, the Hemming Mfg. Co., and the Hemsley Mfg. Co., all of Montreal; J.A. Brown & Co., Toronto, and three other Toronto firms, one Montreal firm and one firm in the eastern townships, the names not as yet known.
Source: The Lethbridge Daily Herald - 24th October 1911
An example of the work of The Hemming Mfg. Co.:



The Canadian Jewelers' Company, Ltd., has been incorporated in Montreal, Canada with a capital stock of $5,000,000 to take over the following plants: Hemming Mfg. Co., of Montreal: Hemsley Mfg. Co., of Montreal: William Bramley of Montreal; and J. W. Brown & Co., Ltd., of Toronto. These concerns are among the largest manufacturers of silverware and jewelry in the Dominion of Canada. It is expected that more concerns will lie brought into the merger later. The officers of the new company are: J. A. Mackay, president; W. M. Wirt, vice-president; and Oscar P. Jonassohn, secretary and treasurer.
Source: The Brass World and Platers' Guide - November 1911
The mark of The Hemming Mfg. Co. is very similar to the one used by Charles Horner of Halifax, England, and there is often confusion between the two.
Trev.