Evidence of a campaign or mascot does not prove invention of the drink. The color advertisement and Saveur-attributed serving formula are separate versions. Claims of dates and sales need original advertising or reporting for publication. Fresh detail PDF100 shows 6 oz orange juice, 1 oz vodka and half an ounce Galliano, distinct from both prose PDF192 (6:3) and Saveur PDF192–193 (4:1).
Don Cazentre, Spirits & Cocktails of Upstate New York: A History (2017). Supplied ebook PDF positions, not print-page numbers.
The account identifies Bill Young’s Upstate advertising connection and compares it with disputed drink-origin stories and later premixed products.
193
189
Harvey Wallbanger: advertising versus invention
September 29 audit: all 227 main-text pages read, every page visually surveyed and 20 details enlarged. Source remains Partial Source for cropped PDF186 menu and partly illegible embedded fine print. This entry's paraphrase and locator were rechecked; historical corroboration, recipe testing, native-byte and browser verification are separate.
No access / Whiskey Excerpts Database (USWA)
Source-grounded paraphrase, not a direct quotation or blanket fact verification.
Evidence
The account identifies Bill Young’s Upstate advertising connection and compares it with disputed drink-origin stories and later premixed products.
Location and context
No access, PDF 189–193; Harvey Wallbanger: advertising versus invention. Supplied ebook PDF positions, not print pagination. Full analysis 
Annotation
Evidence of a campaign or mascot does not prove invention of the drink. The color advertisement and Saveur-attributed serving formula are separate versions. Claims of dates and sales need original advertising or reporting for publication.
Verification checklist
Verified means source fidelity only. Publication claims and practical tests remain separate.