Narrow gauge railways in Australia

We don't know which railway these photos were taken on. Can you help us classify them?

• ABLR (4 images)
• Cobdogla Steam Railway (5 images)
• Commonwealth Railways Narrow Gauge Railways (3 images)
• Gulflander (2 images)
• National Railway Museum Port Adelaide (4 images)
• Nundle Gold Mines (1 images)
• Pichi Richi Railway (15 images)
• Puffing Billy Railway (12 images)
• Queensland Railways Tilt Train (2 images)
• Queensland Sugar Lines (145 images)
• Savanahlander Train (6 images)
• Semaphore-Fort Glanville Tourist Railway (1 images)
• Steamtown Peterborough (7 images)
• West Coast Wilderness (11 images)