I have not figured out how to access People that are not visible on the Photo's 'People' page. In the upper left hand corner of that page it says I have 62 People, but there are only 38 visible. Last OS you could scroll to the bottom of that page to click on something that would show you the 'others'.... but that option is not there so far on Mojave.... or at least on mine. Perhaps just not available yet? Any thoughts? Thank you!