Originally Albert H. Marckwardt, later Raven I. McDavid, Jr., now William A. Kretzschmar, Jr.
Status of field work:
Complete, mostly paper field records, some transcribed from audio tape.
The states of Wisconsin, Michigan, Illinois, Indiana, Ohio, and Kentucky, as well as the southern Ontario.
Nature of recordings:
Based on a 75 page questionnaire in the Linguistic Atlas format, edited down from questionnaires used in the Atlantic States. The data was collected from 1933 through 1978, and includes 564 interviews. 154 audio tapes survive from the region, some of them supplemental to the LANCS speakers.
•Frazer, Timothy. 1993. "Heartland" English: Variation and Transition in the American Midwest. Tuscaloosa: University of Alabama Press.
•McDavid, Raven I., Jr. 1979. Dialects in Culture: Essays in General Dialectology by Raven I. McDavid, Jr. Ed. by W. Kretzschmar et al. University, AL: University of Alabama Press.
•Pederson, Lee A. 1965. "The Pronunciation of English in Metropolitan Chicago." PADS 44.
•Shuy, Roger W. 1962. "The Northern-Midland Dialect Boundary in Illinois." PADS 38.