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Allan Dwan
Dwan's first job was as a lighting engineer for the Peter Cooper Hewitt Company, where he helped develop a forerunner of the neon tube known as the mercury vapor arc. He became intrigued by "those silly things called movies" while supervising the installation of some arcs at Essanay studios, asked about the stories the filmmakers used, and proceeded to sell them 15 he had written at college. Essanay then offered him a job as scenario editor.