The question is mostly about the fonts used in those screens. AFAIK, the images were slides superimposed with data generated by computers that was captured from CRTs by cameras and piped into the MOCR as analog video to be displayed in the slow-scan screens. Terminals such as the IBM 2250 and 2260 were used in the mid-to-late 60's, with vector and raster displays respectively, but I couldn't find information on them being used at NASA's mission control, even though there were multiple IBM 360's in operation there.
The image above show what seems like 24 lines of text, which would be expected from the early CRT terminals of the time.
Other images (below) however, show what appears to be a much higher text density:
None of these images show the characters with enough resolution to distinguish any typographic features, nor they show the text overlays used for labels. Having such close-ups or documentation would be extremely valuable from a historic point-of-view.