Found Ipod nano Preston Train station 1st July 2011 and i would like to return it to the rightfull owner?

if you want to return it, the best you need to do is to look for a clue who is the owner of that device, check the content of the evice, or check the device serial and check it to apple website, they surely have record of the devices being sold. if you are not into it, it is impossible for you to look for the rightful owner