6 rounds

Vernon
Campbell
VS
Jack
Blackburn

Blackburn · TKO 4/6

Sep 18, 1903 · State A.C., Philadelphia, 🇺🇸

Campbell going in—

Blackburn going in18-0-5

Confirmation✓ one source

MethodTKO

Round4 of 6

Sources

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

✓