His mother was Lesley Gribble, daughter of George James Gribble, of Henlow Grange, Biggleswade, who was High Sheriff of Bedfordshire for 1897–1898[1] and his wife Norah Royds, an artist trained at the Slade School of Art who filled Lesley's childhood home with artistic and cultural visitors.
His maternal aunts and uncles included Phyllis Fordham of Ashwell Bury;[2] Vivien Gribble, the engraver and illustrator; Major Philip Gribble, a writer and adventurer who married the daughter of Ronald McNeill, 1st Baron Cushendun and financed Anna Wolkoff;[3] and Julian Royds Gribble, who won a VC at the end of the First World War and died of influenza in a German prison of war camp.
In December 1965 Seebohm was appointed, by Douglas Houghton MP, to chair the Committee on Local Authority Personal Social Services.
Amongst other things, the report recommended the establishment of a unified social service within each major local authority.
He was further president of the National Institute for Social Work, of the Royal African Society and of the Age Concern.