The Clerk of courts will have all the information you need.
Check with the Clerk of Courts in each county you lived, they will, for a fee, copy each of your offenses off for you.
There is always a record, and nothing, I mean nothing is ever "GONE".
Even if you pled not guilty, and found not guilty, the charge will still be on the clerk of courts records.
If you contact the state office, (in my state) they will send you a record for the past 3 years. That is all they keep at the capitol. The rest will be archived for anybodys viewing in the courthouse in which the offense was filed.
PS. When you get pulled over, go to court, etc, this list, with everything you have ever done, charged with, etc, will pop up on the officers computer screen or the computer screen on the judges bench. There is no hiding anything. The leagal system is a large reaching, file keeping industry. Once in, you are there forever.
Mark