Hi! Thanks for your interest in
John Gottlieb Ernestus Heckewelder letters, 1816-1822, to Peter Stephen Du Ponceau
(Mss.497.3.H35o).
We've made some changes to our website, but you can still find this collection here: https://as.amphilsoc.org/repositories/2/resources/73
APS Search Tools
We have lot of ways to explore our holdings.
