The inspiration behind ‘Cousin Mary’ on classic John Coltrane 1960 album Giant Steps died on the last day of August. “A very earthy, folksy, swinging person,” Trane described her in the album liner notes. Mary Lyerly Alexander was 92.  A first cousin of the saxophonist’s, Mary became an activist in Philadelphia and served on the board of the TraneStop Resource Institute and later the John W. Coltrane Cultural Society which was incorporated in 1985 with its hq at the Coltrane House where Mary and her husband lived and which was dedicated to inner city youth positivity, jazz, and the legacy of John William Coltrane. She suffered a stroke in 2005 which rendered her speechless and she lived in a nursing home until her death. Read The New York Times obituary.