  Accurate parallaxes from the Hipparcos catalog have enabled detailed studies
of stellar properties. Subgiants are of particular interest because they lie in
an area where isochrones are well separated, enabling dependable age
determination. We have initiated a project to obtain hi-res spectra of
Hipparcos subgiants in a volume-limited sample within 100 pc. We obtain stellar
properties and abundances via fully automatic analysis. We will use our results
to constrain star formation history and chemical evolution in the solar
neighborhood. We present initial results for our observed sample and discuss
future development for this project.
