1859 – Born in Zanesville, Ohio on the29th of November.
1878 – Gilbert enrolled in the architecture program at MIT.
1894 – Saint Paul Seminary, St. Paul, Minnesota. Cretin Hall, Loras Hall, the Service Center, a classroom building, the refectory building, the administration building.
1895-1905 – Minnesota State Capitol, St. Paul.
– The Broadway-Chambers Building, his first buliding in New York City.
1907 – Alexander Hamilton U.S. Custom House, facing Bowling Green park in Lower Manhattan.
– A series of master plans for the Minneapolis campus of the University of Minnesota.
1917 – Allen Memorial Art Museum, Oberlin College, Oberlin, Ohio.
1918 – Brooklyn Army Terminal, Sunset Park area of Brooklyn, NY.
1921 – The Detroit Public Library, main branch.
1924 – The First Division Monument, President’s Park, Washington DC.
1932 – West Virginia State Capitol, Charleston, West Virginia.
1925 – The James Scott Memorial Fountain, Belle Isle, Detroit, MI.
1926 – Tower plans for cladding the George Washington Bridge, New York City, in masonry.
– New York Life Insurance Building.
1932 – US Embassy Building, Ottowa, Ontario.
1934 – Died on the 17th of May.
1935 – United States Supreme Court building, Washington, D.C.