  Holoraumy is a tool being developed for dimensional enhancement
(supersymmetry holography) where the goal is to build higher dimensional
supersymmetric multiplets from lower dimensional supersymmetric multiplets. In
this paper, for the first time we investigate holoraumy for on-shell
supersymmetry. Specifically, the holoraumy tensors for a number of familiar 4D,
$\mathcal{N}=1$ multiplets are calculated. It is shown in all of these cases of
on-shell theories, the holoraumy is of the form of an electromagnetic duality
charge multiplying a composite transformation involving an electromagnetic
duality rotation through an angle of $\pi/2$ times a space time translation.
The details of our calculations can be found at the HEPTHools Data Repository
at https://hepthools.github.io/Data/.
