Timothy O'Sullivan

Confederate Fortifications, Petersburg

1864

Museo Metropolitano de Arte

Detachment of 50th N.Y. Volunteer Engineers, Pontoon Wagon and Saddle Boat

1864

Museo Metropolitano de Arte

Poplar Grove Church, built by 50th New York Volunteers

1865

Museo Metropolitano de Arte

Tufa Domes, Pyramid Lake, Nevada

1867

Galería Nacional de Arte

Black Cañon, From Camp 8, Looking Above

1871

Museo Metropolitano de Arte

Wall in the Grand Canyon, Colorado River