  A major obstacle to interpreting the rotation period distribution for
main-sequence stars from Kepler mission data has been the lack of precise
evolutionary status for these objects. We address this by investigating the
evolutionary status based on Gaia Data Release 2 parallaxes and photometry for
more than 30,000 Kepler stars with rotation period measurements. Many of these
are subgiants, and should be excluded in future work on dwarfs. We particularly
investigate a 193-star sample of solar analogs, and report newly-determined
rotation periods for 125 of these. These include 54 stars from a prior sample,
of which can confirm the periods for 50. The remainder are new, and 10 of them
longer than solar rotation period, suggesting that sun-like stars continue to
spin down on the main sequence past solar age. Our sample of solar analogs
could potentially serve as a benchmark for future missions such as PLATO, and
emphasizes the need for additional astrometric, photometric, and spectroscopic
information before interpreting the stellar populations and results from
time-series surveys.
