Interview--a conversation in which one person is questioned about his or her opinions or experiences.
Oral--by word of mouth; spoken rather than written.
Primary Source--an artifact, a document, a recording, or other source of information that was created at the time under study. Secondary Source--any source about an event, period, or issue in history created after that event, period or issue has passed. Transcript--a written version of material originally presented in video or recorded format.