I have a Buckeye

In my pocket. What is the origin of the belief that Buckeyes bring luck? I’ve searched the web and found many, many references to luck, but nothing on the origin. Any Buckeyes out there with the skinny?

(I capitalized all instances of “Buckeye” since I suspect it might be an Ohio custom to do so…)

The Governor’s going to call,
the Governor’s going to call.

I wish I had a Buckeye. A T-2C Buckeye.

OK. What’s a Buckeye?

I don’t know where the origin of good luck from a buckeye came from, but Adolph Rupp always had a buckeye when he coached a game for Kentucky. Maybe its merely regional to the Ohio Valley.