Observed spectra of the six candidate spectroscopic gravitational lenses. The spectra are ordered by putative deflector galaxy redshift, with the highest redshift at top. The discrepant lines are marked with a vertical line underneath the continuum. Regions around night‐sky lines at 5577 and 5892 Å are interpolated over, as well as the 5300–5430 Å region in 0920.180194 that was contaminated by zeroth‐order emission from another slit. The apparent line at 4444 Å (observed) in 2148.150598 is spurious. All available spectra for each object were coadded to improve the SNR. The spectrum of 0223.110191 extends to redder observed wavelengths than the others since it includes data obtained with a different spectrograph setup (§ 2). Note the different vertical flux scales.