James Crawford Neilson, or J. Crawford Neilson, was a Baltimore, Maryland-based architect. He was born in Baltimore, Maryland in 1816. After the death of his father in 1822 the family moved to England and in 1824 to Brussels. In 1833, he returned to Baltimore and in 1835, became a member of the survey party working on the Baltimore and Port Deposit Railroad,. His supervisor was Benjamin Henry Latrobe, II, (1806-1878), later supervising engineer on the Baltimore and Ohio Railroad,, son of an equally famous architect, Benjamin Henry Latrobe, (1764-1820). It was at this time that he first became acquainted with John Rudolph Niernsee, (1814-1885), while helping to survey in the area of Martinsburg, Virginia, for the Baltimore and Ohio Railroad.
Calvert Street Station, at North Calvert Street at Bath and East Franklin Streets, upper downtown Baltimore, built 1849-1850 for the Baltimore and Susquehanna Railroad, second railway authorized in Maryland, photo taken 1936, building razed 1949 for "Baltimore Sun" newspaper offices
John Rudolph Niernsee was an American architect. He served as the head architect for the Baltimore and Ohio Railroad. Rudolph also largely contributed to the design and construction of the South Carolina State House located in Columbia, South Carolina. Along with his partner, James Crawford Neilson, Rudolph established the standard for professional design and construction of public works projects within Baltimore and across different states in the United States.
Green Mount Cemetery Chapel
Johns Hopkins Hospital completed 1889