When did Horace Farquhar become a Photographer?

I personally assumed that he had taken many of the older photos but, as we get more facts about Horace Farquhar, having been born in 1875, we speculate that he might have been in photography business when he was around 20-21 years of age, when he began that career. 

So if so, he would have started in 1896, and he's mother Elizabeth had already died in 1893, which is the reason there are no photos of her at a later age.  The following is a history of the events in the photo world that Horace might have been a part of in his lifetime.

1898 – Kodak introduces the Folding Pocket Kodak.

1900 – Kodak introduces their first Brownie, a very inexpensive user-reloadable point-and-shoot box camera.

1901 – Kodak introduces the 120 film format.

1902 – Arthur Korn devises practical telephotography technology (reduction of photographic images to signals that can be transmitted by wire to other locations); Wire-Photos in wide use in Europe by 1910, and transmitted intercontinentally by 1922.

1907 – The Autochrome plate is introduced and becomes the first commercially successful color photography product.

1908 – Kinemacolor, a two-color process that is the first commercial "natural color" system for movies, is introduced.

1909 – Kodak announces a 35 mm "safety" motion picture film on an acetate base as an alternative to the highly flammable nitrate base.[4] The motion picture industry discontinues its use after 1911 due to technical imperfections.

1912 – Vest Pocket Kodak using 127 film.

1912 – Thomas Edison introduces a short-lived 22 mm home motion picture format using acetate "safety" film manufactured by Kodak.[4]

1913 – Kodak makes 35 mm panchromatic motion picture film available on a bulk special order basis.

1914 – Kodak introduces the Autographic film system.

1914 – The World, the Flesh and the Devil, the first dramatic feature film in color (Kinemacolor), is released.

1922 – Kodak makes 35 mm panchromatic motion picture film available as a regular stock.[4]

1923 – The 16 mm amateur motion picture format is introduced by Kodak. Their Cine-Kodak camera uses reversal film and all 16 mm is on an acetate (safety) base.[4]

1923 – Harold Edgerton invents the xenon flash lamp for strobe photography.

1925 – The Leica introduces the 35 mm format to still photography.

1926 – Kodak introduces its 35 mm Motion Picture Duplicating Film for duplicate negatives. Previously, motion picture studios used a second camera alongside the primary camera to create a duplicate negative.

1932 – The first full-color cartoon, Flowers and Trees, is made in Technicolor by Disney.

1932 – First 8 mm amateur motion picture film, cameras, and projectors are introduced by Kodak.[4]

1934 – The 135 film cartridge is introduced, making 35 mm easy to use for still photography.

1935 – Becky Sharp, the first feature film made in the full-color "three-strip" version of Technicolor, is released.

1935 – Introduction of Kodachrome multi-layered color reversal film (16 mm only; 8 mm and 35 mm follow in 1936, sheet film in 1938).[4]

1936 – Introduction by IHAGEE of the Ihagee Kine Exakta 1, the first 35 mm SLR (Single Lens Reflex) camera.

1936 – Agfacolor Neu (English: New Agfacolor) color reversal film for home movies and slides.

1939 – Agfacolor negative and positive 35 mm color film stock for professional motion picture use (not for making paper prints).

1939 – The View-Master 3-D viewer and its "reels" of seven small stereoscopic image pairs on Kodachrome film are introduced.

1942 – Kodacolor, the first color film that yields negatives for making chromogenic color prints on paper. Roll films for snapshot cameras only, 35 mm not available until 1958.

1947 – Dennis Gabor invents holography.

1947 – Harold Edgerton develops the Rapatronic camera for the U.S. government.

1948 – The Hasselblad camera is introduced.

1948 – Edwin H. Land introduces the first Polaroid instant camera.

1949 – The Contax S camera is introduced, the first 35 mm SLR camera with a pentaprism eye-level viewfinder.

1952 – Bwana Devil, a low-budget polarized 3-D film, premieres in late November and starts a brief 3-D craze that begins in earnest in 1953 and fades away during 1954.

1954 – Leica M Introduced

1957 – First digital computer acquisition of a scanned photograph, by Russell Kirsch at the U.S. National Bureau of Standards (now the NIS