Couple interesting tidbits I found in a quick internet search:
The first Hulman Classic was a 2-day show. Qualification runs and a non qualifiers race were held Friday afternoon at 3:00 pm to get field down to 28. Friday tickets were $1.50.
Another article said more than 45 cars attempted to make the race.
A banquet was held Friday evening at the Terre Haute House and a parade was held Saturday morning.
Four heats, a semi feature and 40-lap feature were held Saturday with warm ups at 2:30 pm and heats set to begin about an hour later.
Saturday ticket prices: $5 adult, $3 adult infield, $1 infield kids.
The newspaper article estimated 14,000 fans in attendance. It also speculated that ABC provided $11,000 of the purse.