During Mark Lanyon's twenty-plus-year career in behavioral health he has supervised and/or directed numerous behavioral health programs in settings such as the prison system, proba...lihat lebih banyakDuring Mark Lanyon's twenty-plus-year career in behavioral health he has supervised and/or directed numerous behavioral health programs in settings such as the prison system, probation and parole, hospitals and inpatient and outpatient programs. Over the past ten years Mark has been involved with his personal genealogy research, which has resulted in his membership in a variety of societies and organizations including the Sons of the American Revolution (SAR) and the General Society of Mayflower Descendants. Since retiring, Mark has been able to concentrate his research on the rich history of antislavery activity in Chester County including the Underground Railroad, the Abolitionist Movement, and the founding of Lincoln University.lihat lebih sedikit