Beginning in 1872, the mansion was the home of Robert Garrett, president of the Baltimore & Ohio Railroad, and his wife Mary Frick Garrett. After Robert Garrett's death, Mrs. Garrett married Dr. Henry…

In 1961, the cornerstone of the Baltimore Civic Center (as it was then called) was laid, enclosing a time capsule with notes from President John F. Kennedy, Maryland Governor Millard Tawes, and…