Mr. Straus was a U.S. Congressman and a co-owner of Macy 's department store .
Kurzman is a great - grandson of Ida and Isidor Straus , who died aboard the Titanic in 1912 .
Isidor Straus Isidor Straus was a U.S. Isidor Straus and a co-owner of Macy 's department store .
Kurzman is a great - grandson of Ida and Isidor Straus , who died aboard the Titanic in 1912 .