|    People involved with the story of Pennsylvania's Underground Railroad network, including activists, freedom seekers, station masters, conductors, financiers, lawyers, slave hunters, abolitionists, anti-slavery and pro-slavery adherents, politicians, heroes, villains,	and more. | 
  
    |        Study AreasEnslavement Anti-Slavery Free Persons of Color Underground Railroad The Violent Decade US Colored Troops Civil War Year of Jubilee (1863) | Who's Who in Pennsylvania's Underground RailroadO Surnames
Oenslager, JohnLocation:  Harrisburg, Dauphin County ; Role: Underground Railroad activist and supporterDocumentation: Harrisburg Telegraph, 14 November 1898, page 1.
 German-born John Oenslager settled in Harrisburg with his family as a teenaged boy, apprenticing with jeweler and clockmaker George J. Heisley. Oenslager was a jeweler, watchmaker, a shoemaker, and in later years became a wealthy real-estate developer. Published biographical collections, as well as his Harrisburg area newspaper obituaries describe him as an "ardent abolitionist" who was active in the Harrisburg area Underground Railroad network.
 
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