The State Advisory Committee on Historic Preservation (SACHP) is a nine-member, governor appointed body of citizens with expertise in fields relating to historic preservation. The SACHP reviews all proposed National Register nominations in Oregon.
Annual Meeting Schedule
The
SACHP conducts three meetings a year at sites around
Oregon. These meetings have a business session and often a tour of
heritage sites and organizations in the region. All meetings and tours
are free and open to the public.
Upcoming Meetings and Agendas
The next meeting of the SACHP will be on June 26 and 27, 2025. The meeting location and agenda will be announced in early April 2025.
The SACHP made the following recommendations at the meeting in Salem on February 20 and 21, 2025:
- Salem Substation, Salem (vicinity), Polk County (courtesy review): recommended
- Owyhee Grocery, Nyssa (vicinity), Malheur Count: recommended with revisions
- Mingus Park Community Building, Coos Bay, Coos Count: recommended with revisions
- Oregon Country Methodist Mission Sites: 1834-1847 MPD, various counties in Oregon and Washington: recommended with revisions
- Mill Place House Site, Salem, Marion Count: recommended with revisions
- Port Orford City Jail, Port Orford, Curry County: recommended with revisions
Past Meetings
Recently listed Oregon properties in the National Register can be found here.
Staff
Caitlyn Abrahms, National Register Coordinator
Committee Members

Heidi Slaybaugh (Chair), Bend
Heidi
Slaybaugh has wide-ranging experience in the field of architecture with
an empaphis in historic preservation. She has worked on
preservation projects ranging from the rehabilitation of Pasadena City
Hall, in Pasadena, California to the adaptive reuse of a fire hall
addition to the Wallowa County Historical Museum in Joseph, Oregon. She
also developed the Historic Design Guidelines for the City of
Enterprise, Oregon and the revised Preservation Code for Deschutes
County and the City of Bend. Heidi served as the Chair of the Bend
Landmarks Commission for 10 years and previously served on the Deschutes
County Historical Landmarks Commission. With her vast knowledge and
experience, Heidi meets the Secretary of the Interior’s Professional
Qualifications Standards for Historic Preservation.
Gwendolyn Trice, Enterprise
Gwendolyn is the founder and Executive Director of the Maxville Heritage Interpretive Center, a museum located in Joseph, Oregon in the center of the Arts and Cultural District which focuses on collecting, preserving, and interpreting the rich history of the multicultural railroad logging community of Maxville, Oregon and similar communities in the Pacific Northwest. Gwendolyn, a videographer contributed key oral history interviews, photographs and transcripts for the Oregon Public Broadcasting documentary, "The Logger's Daughter", which shed light on the little-known history of African American loggers and their families who migrated to Maxville from all over the South and Midwest. Gwendolyn created several references to these individuals such as the Oregon Encyclopedia on-line, Blackpast.org, Preservation Magazine, the Forum Quarterly, and the Oregon Historic Quarterly. Gwendolyn also serves on the Oregon State Advocacy Commission on of Black Affairs, and is a 2015 recipient of the Oregon Women of Achievement Award.
Stephen Mark, Crater Lake
Stephen R. Mark joined the National Park Service in 1988 as a historian and is based at Crater Lake National Park. He also serves Oregon Caves National Monument and Preserve, but has also completed projects for John Day Fossil Beds National Monument, Lewis and Clark National and State Historical Parks, Yosemite National Park, and Lassen Volcanic National Park. Steve contributes entries to the Oregon Encyclopedia, and has written books and articles about the Pacific Northwest, especially its public lands. His work also includes historic preservation, both as a compliance specialist and researcher, specializing in linear resources and rustic architecture.
Jacqueline Cheung, The Dalles
Jacqueline Cheung is an archaeologist who has done
excavations, site documentation and research on prehistoric and historic period
sites across the Northwest. She has worked for private contractors, the
Colville Confederated Tribes and for the National Park Service at Fort
Vancouver National Historic Site, John Day Fossil Beds National Monument, Lava
Beds National Monument, Mount Rainier National Park, and Crater Lake National
Park. In recent years, she has worked on sites associated with the Oregon Chinese
diaspora, helping with excavations and historic research. She has lived in The
Dalles for 30 years, living in and renovating a historic house (which is on the
National Register) and helping to renovate a historic Chinese merchandise store
in what was once the city’s Chinatown.
Gregory Shine, Portland
Gregory P. Shine is a historian specializing in the American West, with a focus on Oregon's history. Over a 34+ year career in public service, Greg has contributed to the preservation and interpretation of historical resources through leadership roles with the Bureau of Land Management and the National Park Service. An experienced educator, he served for over a decade as adjunct faculty in Portland State University's History Department, teaching courses on digital media and the interpretation of historic sites. Greg's scholarship includes books, studies, technical reports, presentations, and digital media produced for federal agencies, as well as articles for Oregon newspapers and journals like the Oregon Historical Quarterly. His work reflects a deep commitment to preserving and sharing Oregon's history while incorporating the stories of people, places, and events often overlooked in traditional narratives.
Kassandra Rippee, Salem
Kassandra Rippee (Kassie) is a Tribal Liaison for the Oregon Department of Transportation where she serves as the primary organizational lead for all Tribal consultation for the Interstate Bridge Replacement Program. Prior to coming to ODOT, she served as the Tribal Historic Preservation Officer and Archaeologist for the Coquille Indian Tribe and worked as an archaeologist for a variety of cultural resources management firms on the East Coast. She holds a BA and MS in Anthropology with a specialization in Archaeology as well as an MLS in Indigenous People’s Law. Her approximately 20 years’ experience in cultural resources management includes archaeological site survey and protection, cultural resources compliance, repatriation, government to government consultation, collections management, and public education and outreach.
Matthew Diederich, Eugene
Matthew (Matt) Diederich is the Cultural Resource Manager for the Oregon Military Department (OMD), where he is responsible for the management of the agency’s historic properties. Matt has 25 years of experience in historic preservation and meets the Secretary of Interior’s qualifications for History and Archaeology and is an Oregon qualified archaeologist. In support of OMD’s mission Matt conducts historic property surveys at OMD’s installations. This includes inventory of resources, National Register of Historic Places eligibility determinations, and assessment of effects for OMD undertakings. Matt has received numerous awards for his work including the National Guard Bureau’s Environmental Award, the Department of Army’s Environmental Security Award, and the Oregon Meritorious Service Medal. Matt’s interests include industrial and historical archaeology and military history, but when surveying he is easily distracted by looking for birds.
Sarah Baker Munro, Portland
Sarah Munro majored in Anthropology and Art History at Pitzer College and received an MA in Folklore at the University of California Berkeley. An outgrowth of her master’s thesis on Basque-American folklore was completing a National Register of Historic Places nomination form for the pelota fronton in Jordan Valley. As an active member of the nonprofit Friends of Timberline, which was organized to assist in restoration and preservation of Timberline Lodge, she conducted interviews and research that led to several publications on the lodge. She also researched and wrote a Multiple Property Documentation form for PWA and WPA resources in the State of Oregon. Other writing projects included histories of Schwabe Williamson & Wyatt, Trinity Episcopal Cathedral, and the Junior League of Portland and numerous entries for the Oregon Encyclopedia. For six years, she was Executive Director of Newberg’s Hoover-Minthorn House Museum.