You are here

Immaculate Conception Catholic Church

-A A +A
1925–1926, George Washington Smith. 141 W. Morondo Ave.
  • (Photograph by Mark C. Vinson, FAIA/AICP)

The Immaculate Conception Catholic Church is the work of George Washington Smith, a leading proponent of the Spanish Colonial Revival style. In 1924, mine supervisor and Ajo town developer John C. Greenway married the widowed Isabella Ferguson, who would later become Arizona’s first U.S. Congresswoman and the founder of the Arizona Inn in Tucson. First, however, she made her mark in Ajo by bringing Smith from California to design the town’s first church. The building is a blend of the Mission Revival and Spanish Colonial Revival styles, with a facade that exhibits whimsy and exuberance in its scrolled parapet. The Latin-cross plan rises in buttressed, white-stuccoed walls to a flat roof capped by a graceful dome with lantern. Facing the central plaza, the church has long been a town landmark.

Writing Credits

Mark C. Vinson, FAIA
R. Brooks Jeffery
Jason Tippeconnic Fox



  • 1925

    Design and construction

What's Nearby


Mark C. Vinson, FAIA, "Immaculate Conception Catholic Church", [Ajo, Arizona], SAH Archipedia, eds. Gabrielle Esperdy and Karen Kingsley, Charlottesville: UVaP, 2012—,

If SAH Archipedia has been useful to you, please consider supporting it.

SAH Archipedia tells the story of the United States through its buildings, landscapes, and cities. This freely available resource empowers the public with authoritative knowledge that deepens their understanding and appreciation of the built environment. But the Society of Architectural Historians, which created SAH Archipedia with University of Virginia Press, needs your support to maintain the high-caliber research, writing, photography, cartography, editing, design, and programming that make SAH Archipedia a trusted online resource available to all who value the history of place, heritage tourism, and learning.