Mass accretion rates versus mass of the central object for accreting objects. In red and blue we show members of C69 (red dots for measurements from this work and blue squares for those from Sacco et al. 2008, the masses of LOri061 and LOri063 have been slightly shifted so that in the figure the comparison between the measurements of two studies is clearer) and in black members of the slightly younger cluster σ Ori (measurements from Rigliaco et al. 2011). We included blue and red vertical bars to highlight special cases where more than one measurement is available for a given source (see Appendix A.2.2 for details). In all cases, the masses shown in this figure are the average between the one derived from the L_bol and the one derived from the T_eff. The error bars display the differences among these determinations, see Paper I for details. Particular sources discussed in Appendix A.2.2 are highlighted with gray labels.