A historical market-share claim needs a denominator and evidence suited to measurement.
This is a methodological synthesis from a selected case. It does not invalidate the source or establish a universal causal explanation.
The endnote for the 80% geographic concentration claim points to Bob McKay’s 1978 magazine article; the 35% ownership claim points to Dr. Albert Pfeiffer’s trial testimony. Neither source has been independently checked here against an inventory and defined denominator.
Durable idea
A historical market-share claim needs a denominator and evidence suited to measurement.
Case and reasoning
The endnote for the 80% geographic concentration claim points to Bob McKay’s 1978 magazine article; the 35% ownership claim points to Dr. Albert Pfeiffer’s trial testimony. Neither source has been independently checked here against an inventory and defined denominator.
Research use
Keep the narrative statement, its documentary origin, and the degree of independent verification separate. This distinction helps the Academy present engaging history without converting testimony or vivid storytelling into certainty.
Source trail
Full-volume review extension — September 30
The full endnote audit retains the hold on80%/35%claims (367–368). Wealth figures373 combine deposits, gross revenue and net profit from different sources; barrel valuation396 is Conners testimony1351, not a market price series. Academy application: require measure, date, geography, denominator and documentary origin before comparing scale. This source does not supply an independently audited national inventory.
Full coverage and assessment: