Sent Btc to wrong address!?!?! help

[uck]

  I made a large mistake recently and sent two transactions to the wrong address.

  on 3/25 for 5 btc and again on 3/26 for 10 btc to 1CNgRULaq7PVenr5x3CpbYqQ1kkVaoKopy

  Here are the transactions:
     
        a8c43f870c65e1a3682f1d1dda3ae9e74df94b7ef4d7e051c16586211d56fdb6
        0137f5963394ddfc50e9eb50a989bcfbe62aed5e3a57cbd19abba89a5836a73f

Anybody with better sleuthing ability than me know how to locate this person or company to ask for a refund?


Thanks if you can help!

[edd]

How did you come to use that address? Did you send the 16.8 BTC to that address back in May 2011?

[uck]

it was listed in my wallet, but didnt have any 'description' attached... i cut and pasted and thought i had the right one but didnt.    I probably did make that prev purchase.

[phatsphere]

it's decentralized, uhm, so, that's bad. by posting this address here, you make it discoverable by the receiver via google. that's your best hope, i fear …

[uck]

I looked at my old old transactions from may of 11 and i think what happened was,  every day, after recieving 16 or 20 btc (you got alot then) i would transfer it to mtgox. So I suspect those were mtgox addresses.

But i looked at my acct and i dont see that amount transfereed in, so i imagine they dont use that address anymore. Sooo, I will have to get with them to iron this out. Oh fun.