1836 – Born in Baltimore County, Maryland on the 16th of October.
1856 – He graduated from the Free Academy in New York.
1862 – He returned to the United States. He designed Battell Chapel and Farnham and Durfee Halls at Yale.
1880 – He was in Europe and for a short time after his return was secretary of the New York Municipal Civil Service Board.
1889 – He was president of the Architectural League of New York.
1895 – He was first president of the Fine Arts Federation.
– He was a member of the National Society of Mural Painters, the National Sculpture Society, the National Academy of Design, and the New York chapter of the American Institute of Architects.
1896 – He wrote European Architecture.
1901 – He edited A Dictionary of Architecture and Building with architect Charles Amos Cummings,
1903 – How to Judge Architecture.
1904 – The Appreciation of Sculpture.
1905 – His lectures in Chicago being published under the title The Interdependence of the Arts of Design.
– The Appreciation of Pictures.
– A Study of the Artist’s Way of Working in the Various Handicrafts and Arts of Design.
1906 – An unfinished History of Architecture.
1909 – Died on the 11th of February.