Hi Patty,
I actually am a VERY amatuer coin collector. I have a rather nice penny collection. Nothing real valuable but decent.
The best information I have for you probably won't thrill you.
A 1902 Indian Head penny, in MINT uncirculated condition is only worth about $25. Considering you found it buried, it probably isn't in that great a condition. Probably worth about $1.25. The indian head cent was minted from 1859-1909. Prior to the issue of the five cent nickel, these coins were commonly called nickels or nicks. they made 87,376,722 and were minted in Philidelphia.
Whatever you do don't try to clean it, you will actually lessen the value that way. I would just hang on to it, 20-30 years from now, you might break three digits.
Darren