PETER THE GREAT'S sister TSAREVNA NATALYA ALEXEYEVNA (1673 – 1716) by Ivan Nikitich Nikitin. Natalya was very close to her brother Peter and shared his love of reform, becoming a playwright when women did not do such things. She never married, sometimes served as official hostess for Peter and raised his grandson PETER II after Peter's son Alexei died.
Rachel Carson - Marine biologist, conservationist & native of Springdale Borough. Her book "Siilent Spring," published in 1962, documents the harmful effects of pesticides, especially on birds, and is credited with helping to launch the environmental movement. Her childhood home is now known as the Rachel Carson Homestead and is on the National Register of Historic Places. On Earth Day 2006, Allegheny County renamed the 9th Street Bridge in honor of her life & accomplishments.