Then you might put a series of check boxes at the top (header) for what the page dealt with - shoot, darkroom, film, print - the date, film, camera, lenses, EXIF-type data, location, weather.
An area for commentary or notes in the center.
Then down one side things like developer, dilution, time, paper, temperature, etc.
And if the pages can have the text printed in light gray, rather than dark black, without lines, you could draw over the template instead of needing blank pages.
Then you could end up with journals
like these.
edit: Oh and if you can bind it so it will lie flat. Makes it easier to scribble when one's hands are covered in HC110. May mean a larger format (8x10?) would work better than a smaller one (4x5?)
