skos:altLabel | - Companies
- Georgetown Branch
- Baltimore and Eastern Railroad
- B & O
- B & O Railroad
- B & O train
- B&O
- B&O Bridge
- B&O Railroad
- B&O Railroad line
- B&O Railroad tracks
- B&O Railroad's
- B&O railroad
- B&O track line
- B&O's
- B. & O. Railroad
- B. & O. Railroad's
- B.& O.
- B.& O. Railroad
- B.& O.'s
- Baltimore &
- Baltimore & O.R.R. Co.
- Baltimore & Ohio
- Baltimore & Ohio Railroad
- Baltimore & Ohio Railroad Co.
- Baltimore & Ohio Railroad Company's
- Baltimore & Ohio Railroad Old Main Line
- Baltimore & Ohio Railroad's
- Baltimore and O. Railroad Company
- Baltimore and Ohio
- Baltimore and Ohio (B&O) Railroad
- Baltimore and Ohio Railroad (B&O)
- Baltimore and Ohio Railroad Company
- Baltimore and Ohio Railroad's
- Baltimore and Ohio Southwestern Railroad
- Baltimore and Ohio Southwestern Railway
- Baltimore and Ohio railroad
- Baltimore and Ohio road
- Baltimore and Ohio train
- Baltimore and Ohio’s
- Baltimore and Virginia Steamboat Company
- Baltimore et al. R.R. Co.
- Metropolitan Branch
- Ohio and Mississippi Railroad
- Union Railroad of Baltimore
- the B & O
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