Radial velocity (RV) estimates for members of Hodge 301. Results for the B-type stars from Evans et al. (2015) are shown by the blue circles and estimates for the RSGs in this study are shown by the black squares (for which the uncertainties are not visible on this scale). The average and standard deviation of the B-type stars are indicated by the blue line and shaded region, respectively. The systemic velocity estimated from the RSGs is in excellent agreement with that from the hotter stars (see also Table 3).