Bronze tablet on the south wall of the Willson Memorial Building, home of the Lancaster County Historical Society, 230 North President Avenue. The tablet honors Mrs. Louise Tanger, an active member of the Society as well as a recognized naturalist. It was she who founded the arboretum on the grounds. Erected in 1981.
Provenance
Album of historical markers erected by the Lancaster County Historical Society, compiled by George L. Heiges in 1986.
