The electron affinities of Ga-Br, In-I and Tl-At have previously been computed using a relativistic coupled-cluster version of the Feller-Peterson-Dixon (FPD) composite method, which included contributions from higher order correlation effects (CCSDTQ), Lamb shift quantum electrodynamics effects (QED), and spin-orbit (SO) coupling including the Gaunt contribution. The calculated values have a mean unsigned error of 0.20 kcal mol -1 relative to the experimental data available at the time, and the same work predicted theoretical best-estimates of the EAs for Po and At, which did not have experimental values.