Born and educated in Munich, Germany, George Herzog studied with Joseph Anton Schwarzmann and graduated from the Royal Academy of Arts. He came with his family to the United States in the 1870s, and Herzog joined decorators Konstantine & Otto Kaiser
in Philadelphia by 1874. In the 1875 Philadelphia City directories, the firm is listed as Kaiser & Herzog
and continues as that through 1877. By 1876 he was receiving notice for his work as Kaiser & Herzog at the Centennial Exhibition, and in 1879/80 he began working independently with an office at 1334 Chestnut Street. By 1897 he is advertising in the Philadelphia city directory as "George Herzog: Ceiling and Wall Decorations." Known for his ornate and highly decorative interiors. Herzog often relied upon his painting and design skills for such spaces as the home of Peter A. B. Widener and Philadelphia's City Hall.
However, Herzog did not remain just a Philadelphia interior painter. He opened an office in New York City, where he collaborated with both McKim, Mead & White and Philadelphia architect Hermann J. Schwarzmann, son of his mentor in Munich. In 1893 Herzog joined with Philadelphia craftspeople and artists such as Alfred Godwin, stained glass. to establish Philadelphia own Associated Art Workers, with a house designed to exhibit all of their wares at 1518 Chestnut Street.