From the Wikipedia page 
Edward Thomas "E.T." Heron (18 April 1867–1949) was a pioneering film enthusiast who published The Kinematograph Weekly. An industrialist and printing entrepreneur, he established a number of technical and trade journals. A freemason, he was mayor of St Pancras in 1908, and founded the printing and publishing company E. T. Heron and Co Ltd.
Heron was born at 13 Chichester Street, Paddington, the eldest son of Thomas Heron and his wife, Jane Eliza Ann (née Greene), who had three businesses in the district, selling poultry, game, cheese and butter. Both parents died in 1879 and, in the care of three strict Baptist maiden aunts, he had a brief education at Dr Moore's Prep School, Marylebone Road, and Haberdashers Aske's in Hoxton.
The following year, he left school at age 14 and was apprenticed to Faulding & Truslove Printers in Fulham. In 1888, he started his own imprint at Westminster Press, 333 Harrow Road, publishing The Advertiser, which circulated in Paddington and Queens Park. After further expanding his business operations, in 1897 he married Eliza May Margaret (née Baldrey). The actor Dominic Cooper is their great-grandson.
He commenced publishing The Optical Magic Lantern and Photographic Enlarger (c. 1890), Scott's Machinery Index (1902), The Talking Machine News (1903), The Music Dealer (1906), the 'Millinery Trade Journal'(1906), the Violin Student (1906), The Kinematograph and Lantern Weekly (renamed in 1907), and Bowling and Curling (1908).