Private company
American architectural firm based in St. Louis1
Helfensteller, Hirsch & Watson was an early twentieth-century American architectural firm from St. Louis, Missouri. It succeeded Hirsch and Helfensteller which had been founded in 1903. The firm's partners included Ernest Helfensteller, William Albert Hirsch and Jesse N. Watson.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
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Helfensteller, Hirsch & Watson was an early twentieth-century American architectural firm from St. Louis, Missouri. It succeeded Hirsch and Helfensteller which had been founded in 1903. The firm's partners included Ernest Helfensteller, William Albert Hirsch and Jesse N. Watson. The firm quickly gained prominence with its 1912 design of the Moolah Temple in St. Louis.2
Helfensteller, Hirsch & Watson was founded in 1907 by Ernest Helfensteller, William Albert Hirsch and Jesse N. Watson. The firm operated until 1940. The firm had been preceded by the architectural firm of Hirsch and Helfensteller which operated from 1903 to 1907. With the addition of principal architect Jesse N. Watson to the firm it became Helfensteller, Hirsch & Watson.
From Wikipedia’s article on Helfensteller, Hirsch & Watson, shared under CC BY-SA 4.0.3
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