Oral history interview with Ron E. Henderson conducted by Curtis Johnson on October 27, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Henderson was a frequent patron of drive-in restaurants in Portland, Oregon, in the late 1960s.

Oral history interview with Elston L. Ireland conducted by Curtis Johnson on November 21, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Ireland was a restaurateur affiliated with a total of 14 restaurants in Portland, Oregon, and Seattle, Washington, over the course of his career, including Ireland's Restaurant in Portland.

Oral history interview with Donald P. Krueger conducted by Curtis Johnson on November 13, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Krueger was a frequent patron of drive-in restaurants in Portland, Oregon, in the mid-1950s.

Oral history interview with Wanda L. Krueger conducted by Curtis Johnson on November 13, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Krueger worked as a waitress in drive-in restaurants in several cities across Oregon.

Oral history interview with Joseph H. Rudd conducted by Curtis Johnson on November 20, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Rudd was an architect in Oregon and designed the building for Yaw's Top Notch Restaurant in Portland.

Oral history interview with Robert Svilar conducted by Curtis Johnson from September 10-11, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Svilar was a police officer with the Portland Police Bureau and was known as "Officer Bob the Tootsie Roll Cop" at Yaw's Top Notch drive-in restaurant in Portland, Oregon.

Oral history interview with Charlie M. Yaw conducted by Curtis Johnson on November 19, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Yaw worked as a carhop at drive-in restaurants in Portland, Oregon, during the 1960s.

Oral history interview with Steven P. Yaw conducted by Curtis Johnson on November 12, 1980, as part of the Drive-in Restaurants of Portland Oral History Project. Yaw was the grandson of W.P. Yaw, the founder of Yaw's Top Notch, and ran the restaurant until its closure in 1985.