Question: When did Marguerite Florence Laura Jarvis's husband die?
Sentence (from "Marguerite Florence Laura Jarvis"): She used several other names and aliases, such as Countess Barcynska, Hélène Barcynska, Marguerite Florence Barclay, Mrs. Armiger Barczinsky, Caradoc Evans Marguerite, Marguerite Evans, Armiger Barclay, and Marguerite Barclay.
Relevant evidence: Yes