Roselean Douglas Jefferson died in 1923 in Caddo Parish. This record can be ordered from the LA State Archives.
Ancestry.com. Louisiana Statewide Death Index, 1900-1949 [database on-line]. Provo, UT, USA: MyFamily.com, Inc., 2002. Original data: State of Louisiana, Secretary of State, Division of Archives, Records Management, and History. Vital Records Indices. Baton Rouge, LA, USA.