Adam was born in
Cambridge, the first of three children of
James Adam (1860–1907), a Classics don, and his classicist wife
Adela Marion (née Kensington) (1866–1944). His maternal uncle was
Sir Alfred Kensington, a judge in the Chief Court of the
Punjab. Adam was educated at
Winchester College, and then studied chemistry at
Trinity College, Cambridge, where he later became a fellow (1915–1923). He graduated BA in 1913, received his MA in 1919, and
Sc.D in 1928. ==Career==