Location (and identifier) of the eight Trumpler-14 stars with available spectroscopic parameters in our sample in the sHR (left) and original HR (right) diagrams. The sHR diagram includes the remaining sample for comparison. Crossess indicate stars for which we have detected clear or likely signatures of spectroscopic binarity. Individual uncertainties are included as error bars. Evolutionary tracks and the position on the ZAMS from the nonrotating solar metallicity models by Ekström et al. (2012) and Georgy et al. (2013) are included for reference. Isochrones for τ = 1, 2, 3, and 4Myr are also included. A solid light gray line is drawn to separate the region where no He I lines are available. Using selected points of the evolutionary tracks in the sHRD to delineate the gap of stars near the ZAMS (see Appendix D), we are able to transport an analogous region to the HR diagram (red line).