Exploring the nature and synchronicity of early cluster formation in the
  Large Magellanic Cloud IV: Evidence for Multiple Populations in Hodge 11 and
  NGC 2210
  We present a multiple population search in two old Large Magellanic Cloud
(LMC) Globular Clusters, Hodge 11 and NGC 2210. This work uses data from the
Advanced Camera for Surveys and Wide Field Camera 3 on the Hubble Space
Telescope from programme GO-14164 in Cycle 23. Both of these clusters exhibit a
broadened main sequence with the second population representing ($20 \pm \!
\sim \! 5$)% for NGC 2210 and ($30 \pm \! \sim \! 5$)% for Hodge 11. In both
clusters, the smaller population is redder than the primary population,
suggesting CNO variations. Hodge 11 also displays a bluer second population in
the horizontal branch, which is evidence for helium enhancement. However, even
though NGC 2210 shows similarities to Hodge 11 in the main sequence, there does
not appear to be a second population on NGC 2210's horizontal branch. This is
the first photometric evidence that ancient LMC Globular Clusters exhibit
multiple stellar populations.
