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References
- 1 2 3 "Atlantic Coast Line 4-8-4s". www.trainweb.org.
- ↑ "Atlantic Coast Line 4-8-4 "Northern" Locomotives in the USA". steamlocomotive.com.
- ↑ Reed, Brian (1983). Loco Profile 20: The American 4-8-4. Windsor, Berkshire: Profile Publications Limited. p. 6.
- ↑ Tillotson Jr. (2000) , p. 91.