31From Benjamin Franklin to Cadwallader Colden, 1 January 1754 (Franklin Papers)
ALS : New-York Historical Society I have your Favour of the 3d past, with your Son’s Remarks on...
32From Benjamin Franklin to James Alexander and Cadwallader Colden with Short Hints towards a Scheme for Uniting the … (Franklin Papers)
Copy: New-York Historical Society; also transcript: Library of Congress The Pennsylvania...
33From Benjamin Franklin to Cadwallader Colden, 14 July 1754 (Franklin Papers)
ALS : New-York Historical Society I am very sorry that our unexpected long Stay at Albany...
34From Benjamin Franklin to Cadwallader Colden, 21 July 1754 (Franklin Papers)
ALS : New-York Historical Society I wrote a Line to you from your Landing, promising to send you...
35From Benjamin Franklin to Cadwallader Colden, 30 August 1754 (Franklin Papers)
ALS : New-York Historical Society I have now before me your Favours of July 23. and August 5th. I...
36From Benjamin Franklin to Cadwallader Colden, 5 December 1760 (Franklin Papers)
ALS : New-York Historical Society I take this first Opportunity of congratulating you most...
37From Benjamin Franklin to Cadwallader Colden, 26 February 1763 (Franklin Papers)
ALS : New-York Historical Society; draft (incomplete): American Philosophical Society Your Favour...