In 1953 the island was leased by the Steep Holm Trust supported by four local organisations: the Somerset Archaeological and Natural History Society, Bristol Naturalists Society, Mid-Somerset Naturalists and the Bristol Folk House Archaeological Club.
1953 wurde die Insel an den Steep Holm Trust verpachtet, der von vier regionalen Institutionen getragen wurde: Somerset Archaeological and Natural History Society, Bristol Naturalists Society, Mid-Somerset Naturalists und Bristol Folk House Archaeological Club.