  We extend and generalise the string corrections to the EM memory to the Type
I superstring including spin effects. Very much as in the simpler bosonic
string context, the relevant corrections are non-perturbative in $\alpha'$,
slowly decaying (as $1/R$) at large distances and modulated in retarded time
$u=t-R$. For spin $N$ states in the first Regge trajectory they entail a
sequence of $N$ derivatives wrt $u$ on the `parent' $N=0$ amplitude. We also
briefly discuss how to include loop effects, that broaden and shift the string
resonances, and how to modify our analysis for macroscopic semi-classical
coherent states, whose collisions may lead to detectable string memory signals
in viable Type I models.
