Is listed as arriving on 25 August 1934 at the Port of Quebec with her sister Carol A. TREFETHEN0651 from a trip to Truro, England & Cornwall. See Carol's page for more details. This is where her birth date and place were originally found [Source 36:1895 - 1935 Border Crossings of Canada].
As she was listed as single on the above mentioned trip, it's safe to assume she married Mr. Dobbs sometime after 1933.
Died on 26 Apr 2003 (aged 95) in La Jolla, San Diego County, California, USA
Buried at Mountain View Cemetery in Oakland, Alameda County, California, USA , plot MM PGT, 28, T3
SOURCES:
39. Alice STINSON0638 (Mrs. Lyall)- Correspondence, 11530 La Maida St., North Hollywood, California 91601