May Theilgaard Watts

May Theilgaard Watts
Born(1893-05-01)May 1, 1893
Died20 August 1975(1975-08-20) (aged 82)
Alma materB.S., University of Chicago (botany, ecology); School of the Art Institute of Chicago
EmployerThe Morton Arboretum
Known forBotany, illustration, poetry, natural history and outdoor education
SpouseRaymond Watts

May Petrea Theilgaard Watts (1 May 1893 – 20 August 1975) was an American naturalist, writer, poet, illustrator, and educator. She was a naturalist at The Morton Arboretum in Lisle, Illinois, and author of Reading the Landscape of America.

She is credited with proposing in 1963 what ultimately developed as a national rails-to-trails program. She argued for preservation of abandoned railroad rights-of-way for public use, and helped gain the development of the Illinois Prairie Path.