Full review locates account on PDF 67–71. Career-beginning inference remains possible, not established; ebook interface numbers are not verified printed pagination.
Courtney connects the saloon confrontation, ad hoc posse and gunfight, then suggests the episode may have affected or launched Earp's law-enforcement career.
After a confrontation beginning at Jackson & Tompkins' Saloon, Virgil Earp was deputized into a Prescott posse in October 1877, pursued Wilson and Tullos on foot with a Winchester, and participated in the ensuing gunfight.
Chapter 5; supplied PDF sheet 71
Chapter 5; supplied PDF sheet 67; ebook display page 57 of 145
Chapter 5 — Jackson & Tompkins' Saloon; Wilson–Tullos episode
Paraphrase and sequence checked against rendered PDF sheets 67–71, including sheet 69. External claim validation pending.
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Evidence
Courtney reconstructs an October 1877 incident that began at Jackson & Tompkins' Saloon. Earp was deputized on the spot, followed the posse on foot carrying a Winchester and participated in the exchange of fire with Wilson and Tullos.
Location and context
Chapter 5; supplied PDF sheets 67–71; visible ebook indicators approximately pages 57–59 of 145.
Annotation
Use the event itself separately from Courtney's suggestion that it marked the beginning of Earp's law-enforcement career.
Verification checklist
Verified means faithful source capture, not independent historical corroboration.