6 rounds

Charles
McDonald
VS
Jack
Blackburn

Blackburn · KO 3/6

Mar 9, 1903 · Masonic Hall, Pittsburgh, 🇺🇸

McDonald going in—

Blackburn going in12-0-3

Confirmation✓ one source

MethodKO

Round3 of 6

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Jack_Blackburn

✓