All 58 microlensed dwarf stars plotted on the α-enhanced isochrones from Demarque et al. (2004). The metallicity of the stars in each panel is within  ±0.05 dex of the isochrone metallicity. In each plot the solid lines represent isochrones with ages of 0.1, 5, 10, 15, and 20 Gyr. Dotted lines are isochrones in steps of 1 Gyr. Error bars represent the uncertainties in T_eff and log g as given in Table 4. Note that the age determinations reported in Table 5 are based on probability distribution functions as described in Bensby et al. (2011).