Better line?

No read on button, but UTG was a calling station. Comments on all streets welcome. Value bet on river okay, or should I have bet UTGs stack? I thought he might raise all-in. If I check river, what are the chances I miss value because they both check behind? I really wanted button to put more $ in the pot...

PokerRoom No-Limit Hold'em, $.50 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($43.00)
SB ($44.30)
c-man ($74.45)
UTG ($29.70)
UTG+1 ($21.70)
MP1 ($82.30)
MP2 ($54.45)
MP3 ($50.00)
CO ($93.60)

Preflop: c-man is BB with 5, 6.
UTG calls $0.50, 4 folds, CO calls $0.50, Button calls $0.50, SB completes, c-man checks.

Flop: ($3) 4, 3, J (5 players)
SB checks, c-man bets $1.5, UTG calls $1.50, CO folds, Button calls $1.50, SB folds.

Turn: ($7.50) 7 (3 players)
c-man bets $5, UTG calls $5, Button calls $5.

River: ($22.50) 2 (3 players)
c-man bets $15, UTG calls $15, Button folds.

Final Pot: $52.50

looks good to me. You say UTG is a calling station, so you really need to force the action like you did. Checking on the river is -EV against a calling station.

bet more on the flop, you can be put on a draw pretty easily.
otherwise, nice.
Id only push the river if i really though the station wud call, tricky given the board.