Hello!
Back them in the old times I used to mine BTC with my Radeon 6970 (unlocked to 6990 for extra hash). I mined in the Deepbit pool (which seems to not exist anymore, probably had some lost BTC there too).
So, I have this account 0k4m1 here and another one called k00p4tr00p4 (wich got banned because of the 2015 password leak, I'm trying to recover it yet with no answer).
I still have the public addresses (actually I found 'em back in my signatures) and I have some lost bitcoin in them:
k00p4tr00p4:
https://blockchain.info/address/1Hcyk3HL66MdDsbvzyVb3jx4UTr4tVzAW60k4m1:
https://blockchain.info/address/1JFC7K4T3btTNJcyTBvUjK7SWYRjFGZGo3 (funny, someone deposited recently from 1Enjoy1C4bYBr3tN4sMKxvvJDqG8NkdR4Z, I don't know who is it, but please don't deposit anymore as I can't access this wallet anymore)
The HD that had wallet.dat has died (I used the standard BTC wallet that had to download all the transactions to work).
Any ideas?