  In this companion paper to our article {\em Accidental CR structures}
(arxiv.org, January 2023), thought of as an appendix not submitted for
publication, we provide complete explicit lists of infinitesimal CR
automorphisms for the concerned CR models having respective Lie algebra
structures: $${\bf E}_{II}, \qquad\ {\bf E}_{III}, \qquad\
\mathfrak{so}(\ell-1,\ell+1), \qquad\ \mathfrak{su}(p,q).$$ We start from our
lists of {\em quadric} CR submanifolds $M^{2n+c} \subset \mathbb{C}^{n+c}$ of
codimension $c >1$ which are shown to be {\em accidental}, in the sense that
their CR symmetry groups are {\em equal to} (and not smaller than) the symmetry
groups of the underlying real distribution structures -- after forgetting the
complex structure. Thanks to intensive symbolic computer explorations, we then
determine embedded vector field generators of these CR symmetries Lie algebras,
and we express them in {\em extrinsic} holomorphic coordinates, because
intrinsic formulas would be too extended to be shown.
