With the death of Brian Kuttner on 2 January 1992, near Birmingham, England, summability theory has lost one of its leading exponents. During the period 1934–1991 he published over 100 research papers, including work on Fourier series, strong summability, Riesz means, Nörlund methods and Tauberian theory. Since his death, further papers with joint authorship have continued to appear; his influence persists.