Dr. Charlotte Moore Sitterly (1898-1990). Prominent authority on astronomy and author of more than one hundred books and articles, Sitterly was a career physicist with the Bureau of Standards, U.S. Department of Commerce. She received the American Astronomical Society award in 1937 and was the first woman elected to the Royal Astronomical Society of Great Britain, 1949. Born here in Ercildoun, Dr. Sitterly was a lifelong Quaker and attended Fallowfield Friends Meeting nearby.

640 Buck Run Rd., East Fallowfield Township, PA, United States

Ida Ella Ruth Jones (1874-1959). African American self-taught artist who depicted life in rural Chester County in the first half of the 20th century. The daughter of a former slave, Jones completed more than 300 works in her 70s and 80s. She worked in watercolor, oil, and pencil in a style typical of folk art. Her works illustrated personal observations of family and farm life, nature, landscapes, early technologies, human interaction, and slavery. Jones resided on a nearby farm.

Pa. 82 (Doe Run Rd.) at Rokeby Rd., East Fallowfield Township, PA, United States