  We use new data from Gaia DR2 to confirm that the young L1 $\gamma$ candidate
member of the TW Hya association (TWA) is now a bona fide member with a
model-dependent mass estimate of ~15 $M_{Jup}$. The ambiguous M9 $\gamma$
candidate member 2MASS J12474428---3816464 also gets a higher Bayesian
membership probability for TWA membership as a result of Gaia DR2 data and a
new radial velocity measurement, but it remains unclear whether it is a true
member of TWA or if it is an unrelated young interloper, because it is
separated by 4.6 km/s from the locus of TWA members in UVW space.
