Baltimore Dairy Lunch was a student diner listed in the 1911 Michigan student directory with locations at 322 S. State Street and 120 E. Huron St. "Always open, quick service".
Out of the luncheonette evolved the lunchroom, most retaining the lunch counter as a principal feature. By 1920, chains of lunchrooms were well established in most large cities, although most chains comprised only two or three establishments sharing a name and advertised as "a system." Larger chains also shared central commissaries as well. The Thompson lunchrooms in Chicago and the Baltimore Dairy Lunch Rooms in that city both numbered over 100 stores by 1920; Waldorf Lunch operated a total of 75 stores spread from Springfield, Massachusetts, where the company was headquartered, to New York, Boston, Buffalo, and Providence.
- Baltimore Dairy Lunch, Restaurant Ware Collectors Network
