Letters from her brother Donald Campbell concerning family and social news; including reference to possible insanity of brother John; news of the Indian Mutiny.
Letters from Lady Hastings mainly concerning personal, family and social news; appointment of her daughter Lady Flora Elizabeth as lady-in-waiting to the Queen and notification of her death, (8 Jul 1839).
Letters from his brother-in-law John Mcleod Campbell concerning family affairs especially the settlement of Dr James Macnabb's estate and the sale of Arthurstone; his own religious work and pastoral advice.
Letters from his son James William Macnabb en route for and in India; his examinations and work as Assistant Commissioner at Lahore and Rawalpindi; death of brother John Campbell Macnabb (Meerut 1857) and progress of Mutiny in general.
Letters/short notes from Lord Hastings to Private Secretary James Munro Macnabb; mainly instructions for copying letters, social invitations etc; including letter covers signed by Hastings
Letters to James Munro Macnabb from Lady Sophia Hastings [later Lady Bute] concerning her sister Lady Flora Elizabeth Hastings; death of her mother, 1840; family disputes and legal proceedings over estates of Rowallan and Loudon; also settlement of Lord Bute's estate (of which Macnabb was executor and trustee).