Warren H. Manning’s (1860–1938) practice comprised more than 1,600 design and planning projects throughout North America, from small home grounds to estates, cemeteries, college campuses, parks, and new industrial towns. Trained as a horticulturist and apprenticed with the Olmsted firm, Manning went on to mentor important designers such as Fletcher Steele and Dan Kiley. Under Robin Karson’s direction, contributors to the Warren H. Manning Research Project have worked for more than a decade, locating and assessing current conditions of his built projects. Karson, who is Executive Director of the Library of American Landscape History, will reveal the scope and significance of Manning’s career, showing how his approach to design and planning projects distinguished him from his early twentieth century colleagues. The event will take place in the Weld Hill Research Building of the Arboretum on Thursday, June 15 with the lecture beginning at 6, followed by reception and book signing. Fee Free, but registration requested. Seating is limited. Offered with Friends of Fairsted. Register at my.arboretum.harvard.edu or call 617-384-5277.