'Professor' Charles Tyrrell and His Ideal Sight Restorer
secondary literature · 1986
LINK
SUMMARY
Ferry's 1986 biographical study of Tyrrell is the bundle's source for his death year and his pattern of mail-order device promotion. Though its subject is Tyrrell's separate 'Ideal Sight Restorer' eye device, the paper is a study of Tyrrell himself: it records that his deceptive advertising was described on several occasions in the Journal of the American Medical Association and that he persisted in his enterprises until he died in 1918, the source used here for his death year. Identifiers confirmed against the PubMed record (PMID 3543791) and the Crossref record (DOI 10.1016/s0161-6420(86)33604-2): Ophthalmology, volume 93, issue 9, pages 1246-1257, 1986.
NOTES
The Ferry 1986 Ophthalmology paper grounds Tyrrell’s death year (1918) and documents his career as a mail-order promoter of proprietary health devices whose advertising drew repeated criticism in JAMA. It concerns Tyrrell’s eye device rather than the Cascade, but as a biographical study of the man it supports the case’s account of his methods and his death, and it is the bundle’s deceased-subject anchor. His birth year is recorded in this archive as 1843 (per Wikidata Q5075068), with the variant 1846 from the library-catalog authority record noted explicitly in the practitioner entry; this source does not itself fix the birth year. Identifiers confirmed against PubMed (PMID 3543791) and Crossref (DOI 10.1016/s0161-6420(86)33604-2).