  First principles calculations of the form factors of baryon excitations are
now becoming accessible through advances in Lattice QCD techniques. In this
paper, we explore the utility of the parity-expanded variational analysis
(PEVA) technique in calculating the Sachs electromagnetic form factors for
excitations of the proton and neutron. We study the two lowest-lying odd-parity
excitations and demonstrate that at heavier quark masses, these states are
dominated by behaviour consistent with constituent quark models for the
$N^*(1535)$ and $N^*(1650)$, respectively. We also study the lowest-lying
localised even-parity excitation, and find that its form factors are consistent
with a radial excitation of the ground state nucleon. A comparison of the
results from the PEVA technique with those from a conventional variational
analysis exposes the necessity of the PEVA approach in baryon excited-state
studies.
