Sylvia Eisenmann and Don Halloran near Glacier National Park
Don and Sylvia Sylvia Eisenmann and Don Halloran near Glacier National Park © Don Halloran

Meet our Donors

Don Halloran and Sylvia Eisenmann

A Shared, Enduring Love of Land

Gifts for Nature's Future

Don and Sylvia joined The Legacy Club in 1993 by making a gift in their will and have since set up charitable gift annuities to support TNC’s work in the future. They joined the Last Great Places Society by making a leadership gift in 2019.

Don Halloran and Sylvia Eisenmann embody the truism that people protect what they know and love.

"I joined the Boy Scouts at age 12, and that changed everything,” says Don. “Cooking on a fire at camp, splitting wood, learning to repair my bike—those lessons of self-sufficiency stuck and showed me I could make conservation a significant part of my life.” Don went on to study forestry, work as a smoke jumper and serve in the Navy. Sylvia spent her early years at the end of a country road. “My family had a big garden. I had to walk through our alfalfa field to get to the school bus stop.” And over their lives, they have both shared their love of nature with others—Don as a biology professor and education guide at national parks and Sylvia as a teacher and photographer.

Don and Sylvia met on a tropical ecology trip to Costa Rica and later settled in Wisconsin. Their  mutual pursuits of wilderness and adventure have led them on many journeys, including retracing the paths of Lewis and Clark and Charles Darwin.

“We support TNC because we believe in the importance of buying and managing land,” says Don. “That means it is protected forever—and that is meaningful to us.”

We support TNC because we believe in the importance of buying and managing land. That means it is protected forever—and that is meaningful to us.