Hallo, As I found the most of "Svarc" living in former Austro-Hungyrian Empire in nowadays Slovakia teritory came there from Germany to settle down in so called "Spish" area as craftsmen and traders seeking better life. As time went on they change their names from former Schwarz or Schwartz (means Black) to later Svarc. Then mostly on the eve of 19 century and on beginning of 20 ct. they migrate in large numbers to U.S. ...as far as i know ...my ancestors were farmers and craftmen from village of Hrabkov close to Preshov town (today s Slovak republic)....