Measured masses of the accreting components of the binaries in this catalogue. The marker shapes and colours match those in Figure 9. All masses plotted here were measured by eclipses, except AM CVn itself which is measured spectroscopically (Smak 2023). Also labelled are the typical masses for white dwarfs in isolation and in mass-transferring binaries, and the approximate mass range for which typical Type Ia supernovae are expected under the double-detonation scenario. We note that ATLAS J1138–5139 is the only binary with sufficient mass for a typical Type Ia supernova. The two accretors with sdB-type donors (green carets) and the pre-bounce He CV (magenta diamond) are lower in mass than the rest of the distribution, presumably because their accumulated mass from accretion is still low; their masses are more typical of isolated white dwarfs, while the majority of systems have masses more typical of accreting white dwarfs.