| Description | Letters from Karl Pearson to Ethel Elderton. Concerning work process for analysing Registrar General's death rates, pedigree charts for well-known families, sends research questions and data collecting requirements, alcoholism, dwarfism. Letter dated 1 Feb 1911 Pearson wrote to Mrs Elderton about her daughter and pressure of work. Concerning her Blackburn and Birmingham data on fertility. Miss Moul. Letter dated 20 Aug 1927 on Maria Sharpe Pearson's deteriorating health. Letter dated 7 Apr 1928 with memories of Maria. Concerning her eyes. His life with Greta. |