Question: Gilbert Blount worked under what person who is considered  "one of the most ingenious and prolific figures in engineering history" and "one of the 19th century engineering giants"?
Sentence (from "Isambard Kingdom Brunel"): Brunel built dockyards, the Great Western Railway, a series of steamships including the first propeller-driven transatlantic steamship, and numerous important bridges and tunnels.
Relevant evidence: No