1. MS Mus. 431-432 Reference (shelfmark): MS Mus. 431-432 Title: Alan Bush Collection. Correspondence with the pianist and conductor David Ellenberg and his wife Diana Collection Area: Music Collections Languages: English Date Range: 1940-1991 Extent: 2 volumes
2. MS Mus. 441-443 Reference (shelfmark): MS Mus. 441-443 Title: Alan Bush Collection. Correspondence with the writer Barrie Stavis Collection Area: Music Collections Languages: English Date Range: 1961-1991 Extent: 3 volumes
3. MS Mus. 445-448 Reference (shelfmark): MS Mus. 445-448 Title: Alan Bush Collection. Correspondence with Ronald Stevenson Collection Area: Music Collections Languages: English Date Range: 1961-1995 Extent: 4 volumes