Humboldt personally inspired American linguists of the early nineteenth century such as Peter S. Duponceau and John Pickering (both by correspondence) plus A. Albert Gallatin (probably in person by Alexander’s introduction and perhaps by correspondence) as the first generation of American Humboldtians. Whereas Duponceau had already been impressed by Humboldt’s sociolinguistic field study of Basque, he and Pickering responded to Humboldt’s inquiries for information on North American languages; but Duponceau and Pickering also drew on the Prussian as a descriptive-analytical linguist with a broad hemispheric, even global comparative foundation, a solid interest in linguistic-cultural alterity and diverse language use, language change, and linguistic typology. Thus, they came to share a broad range of linguistic topics. In contrast, Gallatin likely found primary inspiration in Humboldt's early model of linguistic cartography for his own early maps of American languages and for his cultural ecology with language at the center.