Solutions English engineer who built the world's first steam railway locomotive has 5 entries with similar clues
- benzGerman engineer who built the first petrol-engine car
- brunelEnglish bridge builder, railway engineer, and ship designer, d. 1859
- enginesRailway locomotives
- puff-puffSteam locomotive
- thesilverarrowLev Grossman novel about a girl whose rich uncle sends her a steam locomotive with special powers (3 wds)