In 1877 Yule married, as his second wife, the daughter of an old friend,[67] a very amiable woman twenty years his junior, who made him very happy until her untimely death in 1881.  From the time of his joining the India Council, his duties at the India Office of course occupied a great part of his time, but he also continued to do an immense amount of miscellaneous literary work, as may be seen by reference to the subjoined bibliography, (itself probably incomplete).  In Council he invariably “showed his strong determination to endeavour to deal with questions on their own merits and not only by custom and precedent."[68] Amongst subjects in which he took a strong line of his own in the discussions of the Council, may be specially instanced his action in the matter of the cotton duties (in which he defended native Indian manufactures as against hostile Manchester interests); the Vernacular Press Act, the necessity for which he fully recognised; and the retention of Kandahar, for which he recorded his vote in a strong minute.  In all these three cases, which are typical of many others, his opinion was overruled, but having been carefully and deliberately formed, it remained unaffected by defeat.

In all matters connected with Central Asian affairs, Yule’s opinion always carried great weight; some of his most competent colleagues indeed preferred his authority in this field to that of even Sir Henry Rawlinson, possibly for the reason given by Sir M. Grant Duff, who has epigrammatically described the latter as good in Council but dangerous in counsel.[69]

Yule’s courageous independence and habit of looking at all public questions by the simple light of what appeared to him right, yet without fads or doctrinairism, earned for him the respect of the successive Secretaries of State under whom he served, and the warm regard and confidence of his other colleagues.  The value attached to his services in Council was sufficiently shown by the fact that when the period of ten years (for which members are usually appointed), was about to expire, Lord Hartington (now Duke of Devonshire), caused Yule’s appointment to be renewed for life, under a special Act of Parliament passed for this purpose in 1885.

His work as a member of the Army Sanitary Committee, brought him into communication with Miss Florence Nightingale, a privilege which he greatly valued and enjoyed, though he used to say:  “She is worse than a Royal Commission to answer, and, in the most gracious charming manner possible, immediately finds out all I don’t know!” Indeed his devotion to the “Lady-in-Chief” was scarcely less complete than Kinglake’s.

In 1880, Yule was appointed to the Board of Visitors of the Government Indian Engineering College at Cooper’s Hill, a post which added to his sphere of interests without materially increasing his work.  In 1882, he was much gratified by being named an Honorary Fellow of the Society of Antiquaries of Scotland, more especially as it was to fill one of the two vacancies created by the deaths of Thomas Carlyle and Dean Stanley.