Also looking into Sylvia Austin - found a couple of records:
"United States Public Records, 1970-2009," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:KLP7-ZHB : accessed 20 April 2016), Sylvia Johnson, Residence, West Palm Bch, Florida, United States; a third party aggregator of publicly available information.
Possibly a remarriage? To Henry R Johnson. And her middle initial appears to be W.
"United States Public Records, 1970-2009," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:QJH2-PWXQ : accessed 20 April 2016), Sylvia Roker, Residence, West Palm Beach, Florida, United States; a third party aggregator of publicly available information.
Birth date of 1 September 1908 - would go OK with either Albert Hubert (born 1901) or Albert Stanley (born 1910) or another choice.
Can't find any Sylvia Roker in the SS Death DB born 1907 - 1909 - Sylvia Johnson? Nothing for 1908, but a few for 1907
"United States Social Security Death Index," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:JBSX-4TL : accessed 20 April 2016), Sylvia H Johnson, 28 Dec 1989; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
- This one doesn't seem likely - seems like she was born in Nevada and/or possibly passed away there as well
"United States Social Security Death Index," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:JYZ8-24X : accessed 20 April 2016), Sylvia A Johnson, 16 May 2002; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
This one's a possibility, but middle initial differs - passed away in Palm Beach, FL - at least that rings a bell