I think your links cleared things up a lot. Thanks.
From https://www.ncbi.nlm.nih.gov/books/NBK546641/ "A double-blind study blinds both the subjects as well as the researchers to the treatment allocation. Triple-blinding involves withholding this information from the patients, researchers, as well as data analysts."
The first link also says this: "Unblinding may occur during any portion of the blinded clinical trial. Unblinding that occurs before the conclusion of a trial may be a source of bias that the study should document and report. It is the responsibility of all the healthcare professionals involved in a clinical trial, such as physicians, nurses, pharmacists, technicians, and data analysts, to maintain blinding as effectively as possible during the trial and to report any premature unblinding."