Hi Greg. Welcome to G2G!
Your first photo is of a dedication page that was written on a single date, 3 October 1857, so you could use that date in that case. Similarly, the page speaks of a "Société biblique de St. Jean et de Christinville(?)", which might give a location if you can work out where it is.
The other photos range over many years, so choosing "date not applicable" as you have done seems correct. The fourth photo has locations for some events, mainly in Scotland, but others don't have locations, so again "location not applicable" may be best.