Correspondence on invitation to G.A. Baramki to participate in a conference, 1981, 1983; letters from Anne Eaton, widow of Cyrus Eaton in whose house the first Pugwash conference had taken place, 1982, 1987. Letter of 1987 explains the name: 'Pagweak is the Indian for Deep Water and somehow became Pugwash...while "Pugwash" is not the most elegant word I've always felt Deep Water quite appropriate for the issues discussed there'.