Jul 11, 2008 — The 150th anniversary of the birth of renowned soprano Marcella Sembrich continues this summer at her estate in Bolton Landing. Sembrich was an opera diva in the late 1800's and gave voice lessons at her summer home on Lake George. Todd Moe spoke with Sembrich Opera Museum Artistic Director Richard Wargo. An opera composer, Wargo says the museum maintains Sembrich's lifelong love of music and teaching.