Below is a drawing of the structure of the outer wing of the Electra, according to Harney. Station 4 represents the outer end of the right aileron, station 3 the inner end.
The proportion of the leading edge of the aileron to the fore-aft width of the aileron at station #4 is almost exactly 1:4. This corresponds to the ratio of these two dimensions in the capture reproduced below. In addition, the camber drawn by Harney is true to the camber on the surface of the object nearest the viewer.
Furthermore, on the end of the aileron near the leading edge (i.e., at the bottom), one can make out a circle which most probably corresponds to the hinge attachment point.
Close examination of the trailing edge of the "possible" aileron reveals parallel vertical lines, stringers in the exact location to match the rivet spacing of the skin, approximately one per inch along each row of rivets on the aileron.