I thought he was looking for crash reports from Carfax. Which is pretty much Moot anyway because only about 70% of accidents go on the carfax. If you don't want the insurance getting sight of an accident you do it all cash and nobody knows. My aunt bought a 95 Escort yesterday (I drove it home for he) and it's been rear ended fairly hard, but it was NOT on the carfax she got for it.
The carfax thing is as reliable as the "Do not call" list. Friend of mine got a mercury a few yrs ago, carfax said clean but he found that the door or fender had been replaced because of a sticker or something left on the inside. When he insured it the insurance company brought up the accidents it had been in. If it's not reported to carfax then they won't know about it i guess. Not sure how carfax is supposed to work.
I don't know of any way to get all that info. Owners would have to be through DMV unless you can trace back the owners yourself by knowing the previous and they knowing the previous. I've had mine 35 yrs and i know who the original owner is who only had it 2 yrs, then it was sold who knows how many times for the next 8 yrs before the person i knew had it in '74, then several owners that never transferred the title and dummy me didn't write down the name of the owners i got it from in '77. Guess i thought i wouldn't forget their names. I don't know if all DMVs are the same as far as that info but i know they sure won't give that info in Oregon. But also i don't think they could after a fire way back when that burned a lot of records.