I have no connection to this family.Saw your query and did some searching.This is what I found:
Florida Divorce Index, 1927-2001 about Teresa M Destefan Name: Teresa M Destefan Gender: Female Spouse's name: Michael Destefan Divorce Date: 1934 County: Dade Certificate Number: 691
Social Security Death Index about Michael Destefan Name: Michael Destefan SSN: 261-98-0629 Last Residence: 33129Miami, Miami-Dade, Florida, United States of America Born: 7 May 1883 Died: Jan 1972 State (Year) SSN issued: Florida (1965 )
Florida Death Index, 1877-1998 about Michael Destefan Name: Michael Destefan Death Date: 20 Jan 1972 County of Death: Dade State of Death: Florida Age at Death: 88 Race: White Birth Date: 7 Mar 1883
This is all I could find right now.There may be more information.You can get information from the Social Security application and also from the Death Certificates.
Regards, Susan Nass Random Acts of Genealogical Kindness