Contains audio recordings of talks and presentations by McEwen and others at conferences and workshops he attended, as well as interviews given by McEwen. Also included are recordings of Massachusetts Consumers' Council meetings. The recordings are on audio reels and audio cassettes. A number of the audio reels are unlabeled.

Audio recordings have been digitally copied; all original media were retained, but may not be played due to format. Digital use copies can only be accessed in the Burns Library Reading Room.