• I'Anson (Arthur Bryan) . Brass rubbings collected, circ. 1914-1934, and presented by 1934. Add. 43783 
• I'Anson (Arthur Bryan) . writer on genealogy Presented in 1936, 44893 Add. in 1936, 44893 Add. 44939 A in 1937- C 
• I'Anson (Thomas) Sir. Bart, of New Bounds Letter to T. Wotton 1739. Add. 24121 f. 10
• I'Anson (Thomas) Sir. Bart.; Gentleman Porter of the Tower.Case against the Warders 1748. Add. 32714 f. 145
• I'Anson (Thomas) Sir. Bart.; Gentleman Porter of the Tower.Letter to T. Ramsden 1748. Add. 32714 f. 144
• I'Anson (William) . Surgeon in Tasmania Affidavit signed by 1809. Add. 45157 f. 19
• I'Anson of New Bounds . Family of. Account of 1739. Add. 24121 f. 12
• I'anson (Thomas Bankes) Rev. Sir. 5th Bart Letter to J. Jenkinson 1768. Add. 38458 f. 71
• I'anson (Thomas Bankes) Rev. Sir. 5th Bart Letter to the 1st Earl of Liverpool 1768. Add. 38206 f. 2

• Almeloueen (Theodore Janson ab) . Greek Professor at HarderwijkList of printed editions of Quinctilian's Institutiones post 1698. Lat. Add. 24212 f. 81 
• Forbin de Janson (Jacques) . Archbishop of Arles Letters to Card. Gualterio 1711-1726. Fr. Add. 20356 ff. 118-141 
• Forbin de Janson (Jacques) . Archbishop of Arles Papers relating to the plague in his diocese 1721. Fr. Add. 20356 f. 142 
• Forbin de Janson (Toussain de) . Cardinal Letter to Car. Noblet 1702, and reflexions on it. 1702 Add. 16458 ff. 129. 133. Add. 16459 f. 213 
• Forbin de Janson (Toussain de) . Cardinal Letters to Madame de Maintenon. Add. 15904. 
• Forbin de Janson (Toussain de) . Cardinal Letters to the Princess des Ursins 1702. Add. 16458 f. 77- 
• Forbin de Janson (Toussain de) . Cardinal Memorial in defence of the French Bishops. Add. 16474 f. 270 
• Forbin de Janson (Toussaint de) . Cardinal, French Ambassador at Rome Adjudication and depoition 1709. Fr. Add. 29760 ff. 79, 82 
• Forbin de Janson (Toussaint de) . Cardinal, French Ambassador at Rome Letter to Abb_ Bossuet 1704. Fr. Add. 22043 f. 24 
• Forbin de Janson (Toussaint de) . Cardinal, French Ambassador at Rome Letter to P. A. de Vignacourt 1692. Fr. Add. 23099 f. 207 
• Forbin de Janson (Toussaint de) . Cardinal, French Ambassador at Rome Letter to the Prince of Galatro 1703. Ital. Add. 20518 f. 8 
• Forbin de Janson (Toussaint de) . Cardinal, French Ambassador at Rome Letters to Card. Gualterio 1701-1713. Fr. and Ital. Add. 20356 ff. 1-117 
• Forbin de Janson (Toussaint de) . Cardinal, French Ambassador at Rome Processo contro un sbirro 1705. Add. 20401 f. 91 
• Forbin-Janson (Charles Th_odore de) . Comte, Chamberlain to Napoleon I Letters to Sir R. Wilson 1817, 1818, n.d. Add. 30116 ff. 43, 76-  Add. 30147 A f. 17 
• Janson (Alexander). . see Pickle (Alexander).
• Janson (Frederick Halsey) . F.L.S Letters to Sir J. Lubbock 1893-1897 Add. 49659 f. 92 Add. 49662 f. 17 Add. 49663 f. 144 
• Janson (Herman D-) . Vice-Consul at Bergen Letter to H. A. Lee 1886. Add. 44498 f. 126 
• Janson (Jacques Forbin de). . see Forbin de Janson (Jacques).
• Janson (James) . Huguenot, of London Petition to Qu. Anne, etc. 1707. Add. 61618 ff. 135-138 
• Janson (John) . Insurance books kept at Lloyds 1804-1810, 1815. Add. 34669 - 34676 
• Janson (Thomas) Sir. Suit v. Parry 1741. Add. 36050 f. 103 
• Janson (Toussaint de Forbin de). . see Forbin de Janson (Toussaint de).
• Janson. . see Forbin de Janson.
• Jansonius (Petrus) . of Amsterdam Autograph 1600 - 1605. Add. 23103 f. 42 
• Tuke (Margaret Janson) . D.B.E.; Principal, Bedford College for Women Letter to G. L. Strachey 1918 Add. 60732 f. 243 

Searched from BL Manuscripts Catalogue --