The manuscripts of His Grace the Duke of Portland, preserved at Welbeck abbey 
Contributors: Portland, William John Arthur Charles James Cavendish-Bentinck, Duke of, 1857-1943; Nalson, John, 1638?-1686; Stratford, William, 1672?-1729; Cartwright, James Joel; Ward, Richard; Oxford, Robert Harley, Earl of, 1661-1724
Publisher: Printed for H. M. Stationery off., by Eyre and Spottiswoode
Published: 1891
Place of publication: London
Language: eng
Number of pages: 10
Notes: At head of title: Historical manuscripts commission.

Vols. 1-8: Parliament. Papers by command. C. 6474, 6827-I, 7569, 8497, 9466; Cd. 676, 783, 3475.

Vols. 1-4 issued as Great Britain. Historical manuscripts commission.  Report. 13th, appendix, pt. 1-2; 14th, appendix, pt. 2; 15th, appendix, pt. 4.

Vols. 5-10 have title: ... Report on the manuscripts of His Grace the Duke of Portland; v.5 has Norwich.

Reports, including many extracts, prepared by J. J. Cartwright, R. Ward and others.

Vol. 1 is a calendar of twenty-two volumes of the collection of state papers, 1628-1660, formed by Dr. John Nalson, canon of Ely; v.3-10 are calendars of the Harley manuscripts, mainly private and official papers and letters of Robert Harley, 1st earl of Oxford; v. 7 is a calendar of the letters written from 1710 to 1729 to Edward Harley, 2d earl of Oxford, by Dr. William Stratford, canon of Christ's Church, Oxford.