Stellar α-element abundances vs. age in the TESS SCVZ (the Gold sample in Table 1), tracing Galactic chemical evolution of α enhancement from supernovae. Consistent with trends seen in the Kepler field (e.g., Silva Aguirre et al. 2018; Claytor et al. 2020a), there is a weak trend of increasing α abundance with age below 8 Gyr associated with the classical “thin” Galactic disk. We expect but do not see a strong trend of increasing α abundance with age above 8 Gyr (the classical “thick” disk), but this is because we detect very few older stars due to (i) our 27 day detection edge, and (ii) slow rotation and weak activity making stars more difficult to detect.