Robert McLellan served as Chairman of the Scottish Subcommittee of the League of Dramatists from 1952 to 1961, and as President of the Scottish branch of the Society of Authors from 1961 to 1965. The correspondence is mostly with the London headquarters of these bodies, and with their Scottish secretaries, Alec Robertson, Donald Mackenzie and Lavinia Derwent. It concerns meetings and constitutional difficulties, and the possible formation of a separate Scottish Society of Authors in 1962.