In these letters John Ponsonby writes to his brother Lord Duncannon and his brother-in-law Lord Hartington, concerning Irish political affairs.
To Lord Duncannon he writes concerning: the session in Ireland ending; the Cork election and Harry Cavendish advising the Duke of Dorset to drop the election; lies propagated against the Government of Ireland; relying on the support of friends of the government; wishing for his brother's opinion on political matters.
To Lord Hartington he writes concerning: Mr Lesley's new appointment; a polite letter from Mr Pelham laying out his commands; appointing Sir Thomas Wilmott to a post and requiring Lord Hartington's assistance to persuade his brother Bristow; his congratulations on Lord Hartington's appointment as Lord Lieutenant of Ireland; the pleasure of people in Ireland at Lord Hartington's appointment; his assurance of the Primates willingness to be of service to Lord Hartington.