I am researching the Frank Lloyd Wright mass murder at Taliesin of August 15, 1914, in which the perpetrator in the killing of seven people, including Wright's lover Mamah Borthwick (Cheney) and her two children, was alleged to be Julian Carlton, a former house servant of the Vogelsang restaurateur family of Chicago who lived on Deming Place. Carlton's wife Gertrude was also employed by the household. They were referred to Wright by the son John Vogelsang, who catered the Midway Gardens complex that Wright was building in 1914. I am interested in any and all family stories/documents/pictures about this couple and this incident, and about the Vogelsang family and business. What have you heard?