Multiple end receptacles in one room
There is a junction box where the feed is split and goes to each of your &quot;end&quot; outlets if they are on the same circuit. If they are on different circuits, they could actually be end outlets for the two circuits.
What you'd have to do is install a separate GFCI outlet at each location. Check all the outlet boxes because you might find where the feed splits and you could install the GFCI outlet there.