1871-1954. British entrepreneur and philanthropist. Much of the money he acquired as chair (1925-41) of the family firm of confectioners, H I Rowntree, he used to fund investigations into social conditions. His writings include Poverty 1900. The three Rowntree Trusts, which were founded by his father Joseph Rowntree (1836-1295) in 1904, fund research into housing, social care, and social policy, support projects relating to social justice, and give grants to pressure groups working in these areas. Rowntree joined the York-based family business in 1889 after studying at Owens College (later the University of Manchester). The introduction of company pensions (1906), a five-day working week (1919), and an employee profit-sharing scheme (1923) gave him a reputation as an enlightened and paternalistic employer. An associate of David Lloyd George, he was director of the welfare department of the Ministry of Munitions during World War I. His pioneering study of working-class households in York 1897-98, published as Poverty, was a landmark in empirical sociology; it showed that 28% of the population fell below an arbitrary level of minimum income, and 16% experienced `primary poverty'. Rowntree also wrote on gambling, unemployment, and business organization.