6 rounds

Johnny
Haystack
VS
Jimmy
Slattery

Slattery · KO 1/6

Nov 11, 1929 · Broadway Auditorium, Buffalo, 🇺🇸

Haystack going in—

Slattery going in103-8-0

Confirmation✓ one source

MethodKO

Round1 of 6

Sources

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

✓