1To Benjamin Franklin from Nathaniel Seidel, May 1775 (Franklin Papers)
Two copies: Moravian Archives, Bethlehem, Pennsylvania Your safe return from England into this...
2From Benjamin Franklin to Nathaniel Seidel, 2 June 1775 (Franklin Papers)
ALS : Moravian Archives, Bethlehem, Pennsylvania I am much oblig’d by your kind Congratulations...