In 1914 their younger daughter, Louisa Crommelin Roberta Jowitt Whitwell, married Hastings Russell, the then Marquess of Tavistock, who had studied history at Oxford.
In 1901, he was Honorary Secretary of the Oxford Architectural and Historical Society,[6] and in 1907 he was listed as a tutor in Modern History with colleagues including H. W. C. Davis, G. Baskerville, F. Madan, R. L. Poole, R. Rait, and A. L.
[8] The petition was signed by 82 British scholars, including the editors of the OED, and Whitwell was duly allowed to put the proposal to the first plenary session of the Congress, held in the Great Hall of Lincoln's Inn.
[9] The American historian J. F. Jameson, reporting on the Congress, warned that the task that Whitwell envisaged "could not be hopefully undertaken with resources less formidable than those of the International Union of Academies".
[10] The First World War made cooperation on such a scale impossible, but it was indeed the IUA who revived Whitwell's suggestion in 1920, and by the time he died in May 1928 a coordinated effort from over ten countries was well under way.