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John Mackay, James Fair, James Flood, William O'Brien

In 1871, Irish-Americans John William Mackay, James Graham Fair, James Clair Flood and William S. O'Brien, organized the Consolidated Virginia Silver Mine near Virginia City, Nevada, from a number of smaller claims on the Comstock Lode and...

Richard Maddox was an English photographer and physician who invented lightweight gelatin negative plates for photography in 1871. Dry plate is a glass plate coated with a gelatin emulsion of silver bromide. It can be stored until exposure, and after exposure it can be brought back to a darkroom...

Mappin & Webb is a leading retailer of fine silverware and jewellery based in London and is renowned as a purveyor of luxury goods holding Royal Warrants.

The firm started in 1774 when Jonathan Mappin opened his first silversmith workshop in Sheffield, entering his mark in 1775. His reputation...

Peter Mawdsley invented the first photographic paper, the silver gelatin print, in 1873. It was the first photographic process that submerged exposed paper into chemicals, rather than using light, as the chief agent in developing an image. Due to its stability and ease of use, developing-out...

Colorado's Silver Queen

Elizabeth McCourt Tabor (1854 March 7, 1935), better known as "Baby Doe", was the second wife of pioneer Colorado businessman Horace Tabor. Her rags-to-riches and back to rags again story made her a well-known figure in her own day and inspired an opera and a Hollywood...

James H. McKinley and Ernest J. Darragh were contractors providing lumber for a railway being pushed north through the thick Ontario bush. On August 7, 1903 the two partners were walking the right of way scouting for trees suitable for railway ties. As they passed through a rock cut on the banks...

Dr. Willet G. Miller, a world-renowned geologist, had an enormous influence on the scientific advancement and mineral development of Canada, and particularly Ontario, in the early decades of the 20th century. His memory has been perpetuated by such practical tokens as a bronze plaque on a cairn...

Nathaniel Mills & Sons were 19th century Birmingham silversmiths who excelled in making silver boxes, snuff boxes and visiting card cases. Nathaniel Mills, the Elder, was a partner in Mills & Langston, Northwood Jewelers when he registered his first mark in 1803. In 1825, he registered his...