First Hat:

http://www.tf2outpost.com/trade/6928511

C/O of 5 pure and of 160 dollars (a bit more than 5)

Previous Owner:

http://www.tf2outpost.com/trade/6857977

Took the 13th hour Brigade (6.5)

Previous previous:

http://www.tf2outpost.com/trade/6650891

Seemed to have taken a Vivid Bonk Boy (unclear if sweets were added from either side (5.6~7.2 currently)) - http://www.tf2outpost.com/trade/6858829 - check history on the Tower and the Bonk

Previous Previous previous:

http://www.tf2outpost.com/trade/6183380 B/O of 6, traded for these two http://www.tf2outpost.com/trade/6196851 + something I suppode

Second Hat:

http://www.tf2outpost.com/trade/6017826

Claims to have a c/O of 6 from a trade server, has an offer of a Flies Snaggle (7.5), and another of Headcase + 3 crates #40 (at the time, 4.5 + 33 keys, ~5.7)

Previous owner:

http://www.tf2outpost.com/trade/5268217 had an offer of 150, the current owner claims he paid 5.88 in his trade