Quick Google search bought up this page:
http://en.wikipedia.org/wiki/William_Jennings_Demorest

"William Jennings Demorest (aka W. Jennings Demorest) (1822–1895), from New York City, was an American magazine publisher, national prohibition leader, and, in collaboration with his second wife, Ellen Demorest, née Curtis, attained international success from his wife's development of paper patterns for sewing fashion apparel of the day. Together, he and his wife built a fashion manufacturing and merchandising empire from it.

He and his wife launched five magazines. He, as individual, patented a sewing machine and a velocipede. He and his wife started a cosmetic business.

Demorest harbored lifelong political and religious aspirations. He is widely known for being a Prohibition activist and ran for Mayor of New York City on the Prohibition ticket. He also organized the Anti-Nuisance League."

If you search for 6 W 14th St New York, NY 10011, the building where the magazines were published is still standing, it is now a "Best Value Electronics" store.