Su et al. 2006

Snooping around the DEBRIS twiki pointed me to Su et al. 2006...which was VERY helpful in listing the ages of A stars derived from various methods (isochrones, kinematic membership in moving groups, taking advantage of binarity)

Re-plotting my HR diagram for DEBRIS stars with the ages of 24 overlapping DEBRIS targets:

The black stars are those with no age data. Removing those to make the plot easier to read:

This looks great to me!