A series of talks by Mitford Mathews, editor of the Dictionary of Americanisms and lecturer in linguistics at the University of Chicago.An online collection of early educational public radio content from the National Association of Educational Broadcasters (NAEB).
https://www.unlockingtheairwaves.org/programs/american-language/
The colonists go a-borrowing
The second program in this series, "The Colonists Go A-Borrowing," talks about the influence of Native Americans on colonists' language usage.