We work with clients to develop exhibitions from concept to installation that showcase collections, promote organizations, & illustrate historical significance


We develop plans to restore & develop interpretive content for historic properties

Clients we have assisted


SENATOR JOHN J. WILLIAMS HOUSE MUSEUM & CONFERENCE CENTER, DELAWARE TECHNICAL COLLEGE, MILLSBORO, DE. Development of house museum interpretation and collections management, forthcoming

DELAWARE AGRICULTURAL MUSEUM, DOVER, DE. Then One Day the Lights Came On: Rural Electrification and the Formation of the Delaware Electric Cooperative, 2022

FORT MILES MUSEUM, CAPE HENLOPEN STATE PARK, LEWES, DE. Oil Still Bleeds: A Relic & Remembrances of the Battleship USS Arizona, Delaware’s Forgotten Heroes of Pearl Harbor, 2021


PROSPECT AFRICAN METHODIST EPISCOPAL CHURCH, GEORGETOWN, DE. Funds raised for restoration of Georgetown’s oldest African American church, Researched and authored National Register of Historic Places Nomination Application, Development of partnerships to reestablish church as a center of the community, ongoing

ICKFORD & THE CANNON-MASTON HOUSE, SUSSEX COUNTY LAND TRUST, SEAFORD, DE. Interpreting 59-acre historic property with 2 historic houses as a cultural and recreational venue, ongoing

THE NASSAU SCHOOL #198C, DELAWARE DIVISION OF HISTORICAL & CULTURAL AFFAIRS, BELLTOWN, DE. Restoration and adaptive reuse project in partnership with the Nassau School Coalition, ongoing

Heidi Nasstrom Evans, Ph.D., Horizon Senior Associate

works on various projects in a number of capacities curating exhibitions, developing related public programs, writing grant applications, working on sponsorship and capital campaigns, developing case-for-support publications and presentations.

She feels fortunate to have translated her museum and academic career into something local after moving to Delaware from Washington, DC, where she worked from 1996-2017 as a professor and administrator, teaching budding curators and museum professionals at the Smithsonian/Corcoran College of Art and Design Masters Program in Decorative Arts and Design History.