J. J. Duck Company
429 Saint Clair St.  (The 1909 World Almanac and Encyclopedia copyright 1908)
398-400 Saint Clair St.  (December, 1912 Popular Mechanics magazine pg 116)
Toledo, Ohio

William B. Duck Co.
430-432 Saint Clair St. (1914 William B. Duck Wireless catalog No. 8)
711 Adams Str. (November, 1924 The Radio Trade Directory page 80)
Toledo, OH

The Duck Co. started in Toledo in 1908 when William B., a lawyer who had developed an interest in wireless, went into the mail order radio parts business with his brother, John J., an electrical contractor. The company was initially called the J.J. Duck Company.

They sold all kinds of radio parts made to their specifications under the Duck brand name. In 1914, John withdrew to attend to his contracting business and the name was changed to the William B. Duck Co.

Duck was in a unique position when broadcasting began in 1921. He offered everything needed by the home constructor. Business boomed until 1925 when factory-made sets cut into the parts business for home builders. He operated radio station WHU in Toledo.

He struggled into the depression, but finally sold off his inventory and closed in 1932. He retired at the age of 52 and died in Marietta in 1952 at the age of 71.