Spatial distribution for the objects shown in Fig. 17 (symbols as in that figure). The spatial concentration of the orange circles, presumably high-reddening OB stars, stands out. A few objects of interest discussed in the text are labelled. Wd1-1039 is the only object with two labels, as it is both a Ia supergiant and a highly reddened star (Wd1-1069 is much more heavily reddened, but is not marked with an orange circle, as it lies outside the main distribution). A handful of the members in Clark et al. (2020) are outside the area shown.