Sonny, some people here anchor their belief that Sonny died in '49 to the presence of a "Dewey for President" poster on a wall when Sonny beats up Carlo. But, Thomas E. Dewey, the Republican Presidential candidate in '48, also was their candidate in '44, so the poster could be part of support for an earlier date for Sonny's death.
The screenplay has Sonny's murder occuring in the Spring of '46. But in Jenny M. Jones' book you get a glimpse of FFC's Sicilian notes that state those scenes take place in 1948.
