Please take note that the middle picture was the closest I ever got (not even close right?!) from adjusting the color temp from 2500 to 10,000.
oh i think i see now what you are trying to say/do.
If you take the picture of the child in DPP and set the white balance to "shot settings" this will assign the color temp you had in camera. If you then select "Color Temperature" you can see the number value set in kelvin. I don't use DPP but I opened it up and tested this. When I move from "Shot Settings" to "Color Temperature" the image retains the color value and displays the degrees kelvin that you had set in camera.
Of course the result is that the image is exactly the same as it was before, and you now know your degrees kelvin.