This set of nearly 50 letters have been taken from the manuscript collections at the Historical Society of Pennsylvania in Philadelphia: The Simon Gratz Collection and the Ferdinand J. Dreer Collection; McGill University Library; John Rylands University Library at Manchester; Angus Library, Regent’s Park College, Oxford; Dr. Williams's Library, London; University of Aberystwyth Library; and the Morgan Library, New York.  A few of these letters were noted by Geoffrey F. Nuttall in his invaluable Calendar of the Correspondence of Philip Doddridge (1977) and one in his Philip Doddridge: Additional Letters (2001), but he only saw the original manuscripts for a handful of them. Nearly all the letters in this collection have not been seen in their original forms or previously known to scholars of Doddridge. Most of the ones Nuttall cited (of which he did not see the original MS) appeared in The Posthumous Works of Isaac Watts (1779), Thomas Milner's Life of Isaac Watts (1834), Daniel Neal's History of the Puritans (1793), Walter Wilson's History and Antiquities of Dissenting Churches . . . in London (1808-14), J. D. Humphreys's Correspondence and Diary of Philip Doddridge (1829-31), and Thomas Stedman's Letters to and from Dr. Doddridge (1790). 

1. Samuel Clark, St. Albans, to Philip Doddridge, Kibworth, 2 February 1720/21.

2. Philip Doddridge, Harborough, to Isaac Watts, 22 November 1729. 

3. Isaac Watts, [Stoke Newington], to Philip Doddridge, Northampton, Saturday, 20 May, 1732.

4. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 25 February 1733/4.

5. Philip Doddridge, Newport Pagnell, to Mercy Doddridge, Northampton, 12 o’clock, 12 June 1734.

6. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 9 March 1735/6.

7. Three members of a committee [John Norris, David Some, Thomas Cartwright] representing the church at Creaton, Northamptonshire, to Philip Doddridge, Northampton, 6 May 1736, with reply from Doddridge attached to the same letter. 

8. Philip Doddridge, [Northampton], to the Revd William Chapman, Bethnal Green, London, 6 March [May] 1736. 

9. Daniel Neal, London, to Philip Doddridge, Saturday Evening, 12 May 1739. 

10. Philip Doddridge, Northampton, to the Rev. Thomas Scott, Norwich, 13 September 1739. 

11. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 1 December 1739.

12. Philip Doddridge to an unnamed correspondent [Rev. Thomas Scott of Norwich], undated [c. 1739-40]. 

13. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 18 September 1740.

14. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 8 March 1740/1.

15. William Warburton to Philip Doddridge, Northampton, 28 May 1741.

16. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 24 December 1741.

17. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 26 February 1741/2.

18. Philip Doddridge, Northampton, to Mercy Doddridge,  21-22 December 1742.

19. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 24 February 1742/3.

20. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 20 September 1743.

21. Nathaniel Neal, Million Bank, to Philip Doddridge, Northampton, 15 October 1743.

22. Richard Newton, Hertford College, to Philip Doddridge, 26 January 1743/4. 

23. Anne Dutton, Great Gransden, to Philip Doddridge, Northampton, 30 January 1743/4. 

24. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 11 February 1743/4.

25. Philip Doddridge, Northampton, to the Revd Thomas Scott, Norwich, 29 May 1744.

26. Philip Doddridge, Northampton, to Elizabeth Scott, Norwich, 21 March 1745. [Copy of the original.]

27. Philip Doddridge, Northampton, to Elizabeth Scott, Norwich, 12 May 1745.

28. Philip Doddridge, Bury, to Mercy Doddridge, Northampton, 28 June 1745. 

29. Isaac Watts, Stoke Newington, to Philip Doddridge, Northampton, 26 January 1746/7.

30. Philip Doddridge, Northampton, to [David] Wilson, at Mr. Balfour’s, Bookseller, Edinburgh, 5 May 1747.

31. Philip Doddridge to Mercy Doddridge, Tuesday morning, 28 July 1747. 

32. Joseph Parker, Stoke Newington, to Philip Doddridge, Northampton, 22 November 1748.

33. Joseph Parker, Stoke Newington, to Philip Doddridge, Northampton, 22 December 1748.

34. Philip Doddridge, Northampton, to the Isteds, 24 April 1749. 

35. Anne Dutton to Philip Doddridge, incomplete and undated [7 August 1749]. 

36. Anne Dutton, Great Gransden, to Philip Doddridge, Northampton, 25/26 September 1749. 

37. Philip Doddridge to Joseph Parker, 26 September 1749.  

38. Nathaniel Neal, Million Bank, London, to Philip Doddridge, Northampton, 29 March 1750.

39. Nathaniel Neal, Million Bank, London, to Philip Doddridge, Northampton, 17 July 1750.

40. Philip Doddridge, Northampton, to Elisha Williams, Welbeck Street, London, 4 April 1751.

41. Job Orton, Salop [Shrewsbury], to Mrs. Philip Doddridge at Northampton (“turn at Towcester”), 7 November 1752.

42. Samuel Davies, Hanover [Virginia], to Mercy Doddridge, Northampton, 28 April 1755.  

43. William Warburton, Prior Park, to Mercy Doddridge, Northampton, 6 May 1756.

44. Hugh Farmer, Walthamstow, to Mercy Doddridge, Northampton, 4 August 1756. 

45. William Warburton, Grosvenor Square, London, to Mercy Doddridge, Northampton, 8 March 1759. 

46. Job Orton (1717-83), Salop [Shrewsbury], to Mercy Doddridge, [Northampton], 4 August 1763. 

47. Job Orton, Salop [Shrewsbury], to Mercy Doddridge, Northampton, 9 April 1764.

48. Job Orton, Salop [Shrewsbury], to Mercy Doddridge, Northampton, “to be left at Revd Mr Ashworth’s in Daventry,” June 1765.