So that we don't have to turn. our monitors 90º to view you photos you might use screenshots to show the issue:
How to take a screenshot on your Mac
(⌘⬆︎3) Command-Shift-3 Capture the screen to a file
(⌘⬆︎⌃3) Command-Shift-Control-3 Capture the screen to the Clipboard
(⌘⬆︎4) Command-Shift-4 Capture a selection to a file
(⌘⬆︎⌃4) Command-Shift-Control-4 Capture a selection to the Clipboard
(⌘⬆︎5) Command-Shift-5 Invoke new screen grabber
You might try PowerPhotos to see if it can copy the iPhoto library into the Photos library. First use the free version of it to see if it can read the iPhoto library. If it can it will take the paid version to do the merging.
