 Manton deliberately established the fund in a form that would allow American citizens to make donations which would support the mission of the Tate and this has stimulated very significant gifts of works of art and more than $70m in donations.In 1992 and 1997, Manton made further gifts totalling nearly £12m towards the centenary development and other projects at Tate Britain; he also made a promised bequest of a major Constable, The Glebe Farm.These magnificent gifts allowed the trustees to transform the presentation of British art at Millbank as Tate Britain, in 2001.