The four fields targeted in the various HALO7D observations, clockwise from top left: COSMOS, EGS, GOODS-South, GOODS-North. Black shaded regions indicate coverage from the CANDELS catalogs in these fields (Dahlen et al. 2013; Guo et al. 2013; Santini et al. 2015; Kocevski et al. 2017; Barro et al. 2019) with measured photometry and redshifts. The colored points indicate the locations of HALO7D target galaxies. We obtained successful redshift fits for points with colored outlines (gold or magenta), and were unable to measure redshifts in HALO7D spectra for the points with black outlines. HALO7D targets in the COSMOS and EGS fields included a number of galaxies outside the regular CANDELS coverage, as can be seen where the HALO7D targets do not overlap the black CANDELS region. We obtained photometry for these galaxies from the COSMOS/UltraVista (Muzzin et al. 2013) and EGS/IRAC (Barro et al. 2011a, 2011b) catalogs.