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Staff & Board


Staff Members

Christina Oey

Executive Director

Christina, an experienced advocate and nonprofit professional with over 17 years of experience in the nonprofit sector, joined SDHC in May 2024. Christina has a master’s degree in Advocacy and Political Leadership with a Nonprofit Organization focus from the University of Minnesota, Duluth and a bachelor’s degree in political science from the University of Minnesota, Twin Cities. Christina serves on the Boards of Directors for the South Dakota Nonprofit Network and the Camp Unistar Foundation. Christina is a proud Hufflepuff, and in her free time she enjoys reading, crosswords, historical research, and spending time with her two daughters.

Joshua Rudnik, Ph.D.

Center for the book director

Joshua, an educator and poet, was raised in the Black Hills of South Dakota and the eastern plains of Colorado, landscapes that continually inform and inspire his professional and creative work. Joining the South Dakota Humanities Council team in January 2026, he brings over ten years of experience in education, the humanities, and public programming. He earned a Ph.D. in Creative Literary Studies and an M.A. in English from the University of South Dakota, and a B.A. in English from Metropolitan State University of Denver. Joshua is committed to connecting books, literature, and the humanities to people and communities across South Dakota through collaboration with educators, tribal communities, and statewide partners. He is an avid reader, a cat dad, and a LEGO enthusiast.

Amber McChesney

Business Manager

Amber, a lifelong South Dakotan, joined SDHC in December 2025. She brings over a decade of experience in operations and team development, with a strong foundation of streamlining processes and supporting organizational growth. With a background spanning strategic execution and people-first leadership, she is passionate about improving how people work—and how they feel in their roles. Outside of work, she enjoys spending time with her children, whose energy keeps life meaningful (and full of snack negotiations). When she sneaks some free time to herself, she can be found writing free-verse poetry, attempting to bake, or scouring thrift stores in search of the world’s most perfect coffee mug.

Maribel Barrera

Marketing Coordinator

Maribel joined SDHC in January 2026 as the Marketing Coordinator. She earned a bachelor’s degree in Communication Arts (Radio, TV, and Film) from the University of Wisconsin-Madison. With over three years of experience in communications and digital strategy, she is passionate about using her degree and expertise to empower communities, especially youth, through inclusive storytelling. She is excited to help SDHC amplify the voices that matter most to our communities. Outside of work, she is a fitness enthusiast, enjoys live music and reading.  

Board of Directors

*Governor Appointee

Stephen Williamson

Stephen Williamson*

Chair
Sioux Falls, SD
Tanya Grassall-Krietlow

Tanya Grassel-Krietlow

Secretary
Pierre, SD
Kate Hayes

Kathryn Hayes

Treasurer
Sioux Falls, SD

Carol Rempp

At Large
Avon, SD
Rosie Sprague

Rita Anderson

Member
Beadle County, SD
Darlene Farabee

Darlene Farabee*

Member
Vermillion, SD
Rosie Sprague

Kira Christensen

Member
Sioux Falls, SD
Rosie Sprague

Erik Gilbertson

Member
Sioux Falls, SD
Bobbie Bohlen

Erik Muckey

State Representative
Sioux Falls, SD
Rosie Sprague

Rosie Sprague

Member
Spearfish, SD
Terri Mehlhaff

Danielle Tiegen

Member
South Dakota
Terri Mehlhaff

Terri Mehlhaff

Member
Pierre, SD


We’re excited to share that SDHC is growing and evolving, and we’re currently recruiting new board members who are passionate about strengthening our mission and impact. If you’re interested in learning more or exploring board service, feel free to reach out to Christina Oey at christina@sdhumanities.org.