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Diego Sepulveda Adobe Estancia of Costa Mesa
Costa Mesa, California

History, Historic House, Historical Society, Military

Our Society has two facilities, the Diego Sepulveda Adobe (California Historical Landmark #227), and our headquarters/museum/research facility at 1870 Anaheim Street in Costa Mesa. A part of our group, the Santa Ana Army Air Base Wing, covers the Santa Ana Army Air Base which was a pre-flight school for pilots, navigators and bombardiers from 1942-1946. We have collections covering both Costa Mesa and the SAAAB, as well as exhibits for both. When corresponding, please use our P.O. Box 1764, CM, 92628 address.

MUSEUM CONFERENCES

2025 Tennessee Association of Museums Conference: HOPE

March 11 - 14, 2025

Knoxville, Tennessee

Virginia Association of Museum's 2025 Annual Conference!

March 15 - 18, 2025

Blacksburg, Virginia

Ohio Museum Asociation 2025 Annual Conference - Athens

March 29 - 31, 2025

Athens, Ohio

North Carolina Museums Council 2025 Annual Conference

March 30 - 31, 2025

Raleigh, North Carolina

Arkansas Museums Association 2025 Conference

March 31 - April 3, 2025

Washington, Arkansas

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