There's no way to find out where they were originally, unless you made a backup or kept a list. Files don't have "I came from" headers. (Except in Windows, when you move a file to the recycle bin - because the whole idea of moving a file to the recycle bin is allowing you to restore it to where it came from.)
Moving them back is as simple as moving them in the first place - just decide where to put them, then move them.
In the future, your pictures will be in the DCIM and Pictures folders. Just copy the folders to the SD card, then delete all the files (but not the folders) in those folders. It's called "maintaining the tree structure". A picture that was in DCIM/Camera/July_4 in the phone will be in the DCIM/Camera/July_4 folder on the card.
03-14-2015 06:46 PM