"Maine Vital Records, 1670-1921," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q24J-QXL6 : 2 March 2021), Sarah Silverman, Birth 24 Aug 1909; multiple sources, Maine; FHL microfilm 10,190.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JPSW-ZMD : 7 January 2021), Sara Caplan, Nov 1979; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
Find a Grave, database and images (www.findagrave.com/memorial/163761490/sara-caplan : accessed 26 May 2021), memorial page for Sara Silverman Caplan (24 Aug 1909–27 Oct 1979), Find a Grave Memorial ID 163761490, citing Temple Beth El Memorial Park, Portland, Cumberland County, Maine, USA ; Maintained by MaineMan (contributor 47169380) .