Keynes ' father , John Neville Keynes ( 1852 â `` 1949 ) outlived his son by three years . Keynes 's brother Sir Geoffrey Keynes ( 1887 â `` 1982 ) was a distinguished surgeon , scholar and bibliophile . Keynes was the first born , and was followed by two more children - Geoffrey Keynes in 1887 and Margaret Neville Keynes in 1890 .