William Ziegler Sr. was an American industrialist who was one of the founding investors of the Royal Baking Powder Company. With his wealth, Ziegler became a prominent public-interest litigant. His other interests were organizing Arctic expeditions and yachting.
- Occupation
- photographer, businessperson
- Citizenship
- United States
- Born
- September 1, 1843
- Died
- May 25, 1905
