Tags: Architect.
Osterman and Siebert was an architectural firm in Walla Walla Washington. Henry Osterman was senior partner.Osterman was born in Essen Germany in 1862 The firm’s work included Dixie High School (Washington) and Liberty Theater (Washington). Henry Osterman is credited with designing the Electric Light Works Building Green Park School and Walla Walla Public Library. Outside of Walla Walla the firm designed Preston Hall (Waitsburg Washington).