Elderton, Sir William Palin <p>Letters from William Elderton, Actuary, and brother of Ethel Elderton.</p> <p>Letters to Pearson regarding Mendelian Inheritance; the death of W F R Weldon; the exchange of papers and publications; statistics; Ethel Elderton; calculations and methods of interpolation; vaccination data and statistics; criticism of Francis Y Edgeworth; data collected by life insurance companies, and its possible use in biometric and eugenic studies; the role of medical examinations when determining insurance policies; data on Miners' Phthisis; Pearson's work on tuberculosis; the relationship between the Institute of Actuaries and the Biometric Laboratory; mortality figures; census data; and providing life insurance advice to Pearson. Enclosed with the letters are Annual Reports and Accounts for the Equitable Life Assurance Society for the years 1910-1914.</p> <br></br> <p>Letter to Helga Hacker, née Pearson, dated 1957, regarding Pearson's correspondence, the work Elderton carried out for Pearson, and his relationship to University College and the biometric and eugenic laboratories.</p> 1902-1936