The manuscripts of His Grace the Duke of Portland, preserved at Welbeck Abbey ... 

 - London :  H.M.S.O.,  1891-1931. 
 - 10  v. 
 - Reports (Great Britain. Royal Commission on Historical Manuscripts). Appendix ;  13 ; part 1 ; part 2 Reports (Great Britain. Royal Commission on Historical Manuscripts). Appendix ;  14 ; part 2 Reports (Great Britain. Royal Commission on Historical Manuscripts). Appendix ;  15 ; part 4 Publications (Great Britain. Royal Commission on Historical Manuscripts) ;  29 .
 - Cd. ;  783. Cd. ;  3475. .
 - Reports (Great Britain. Royal Commission on Historical Manuscripts).  Appendix ;  13 ; part 1 ; part 2 Reports (Great Britain. Royal Commission on Historical Manuscripts).  Appendix ;  14 ; part 2 Reports (Great Britain. Royal Commission on Historical Manuscripts).  Appendix ;  15 ; part 4 Publications (Great Britain. Royal Commission on Historical Manuscripts) ;  29 .
<br/><br/><label>Subjects--Personal Names: </label><br/>Cavendish-Bentinck, William John Arthur Charles James, 6th Duke of Portland <br/>Nalson, John, 1638?-1686. <br/>Harley, Robert, 1st Earl of Oxford. <br/>Harley, Edward, 2nd Earl of Oxford. <br/>Stratford, William, 1672?-1729. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Archives--Indexes.--Great Britain