I have 61,000 photos on my 2009 MacBook (OSX 10.9.5) in iPhotos (9.5.1) that I can no longer access. They include all photos taken or scanned from years 1960-2017. I can no longer update the OS or the iPhoto program on the MacBook. iPhotos freezes or closes after a few minutes of use on the old MacBook and I can't sync the photos to my iCloud account. I put them on an external hard drive and tried to open them with my Macbook Air, but after an hour it's only loaded 1% and the library is 450 GB and I only have 100 GB on my Air. Have I permanently lost all of my photos?