Rich has been scanning an archive of photos from the family history. He's used scanning services, a DIY with Epson Fast Foto, Flatbed scanners. The works. But in the last six months, he's organized the photos and then imported them into Photos. But he can't search by date. The dates have been linked according to the date it's been scanned. Leo says that Photos is using the File modification date. You can't really rely on that.
EXIF file editors
Bruce has a lifetime of slides that he's scanning to his Mac. He uses the info file comments for key details, but he can't share those with his son. Leo says that's because those comments are only for his Mac. What Bruce needs to do is use the EXIF field in the photo file itself. It provides details like date, time, camera settings, GPS, etc. So what Bruce needs to do is use Apple Photos to do it, but you can also use the Preview. Click on CMD + I for that photo to open the Inspector. Then look for the annotations icon (a pen), and you can put the data there.