Effective research begins with extensive resources. Our library contains thousands of volumes of commercial and professional city directories; telephone directories; foreign language directories; microfilm and microfiche files; databases; atlases; census records; historical publications; genealogical documents; and various family genealogies. Many of the documents date back to the early 1800's. Our resources include a worldwide network of highly trained researchers and investigators.

In addition, the firm has associate offices located in:

United States

  • Baltimore, Maryland
  • Boston, Massachusetts
  • Chicago, Illinois
  • Cleveland, Ohio
  • Fairfax, Virginia
  • Los Angeles, California
  • Las Vegas, Nevada
  • Milwaukee, Wisconsin
  • Minneapolis, Minnesota
  • New York, New York
  • Palm Coast, Florida
  • Philadelphia, Pennsylvania
  • Portland, Oregon
  • Reno, Nevada
  • Salt Lake City, Utah
  • San Diego, California
  • San Francisco, California
  • Seattle, Washington
  • Tucson, Arizona
  • Washington, DC
  • Youngstown, Ohio


  • Berlin, Germany
  • Budapest, Hungary
  • Castlebar, Ireland
  • Dublin, Ireland
  • Heilbronn, Germany
  • Jerusalem, Israel
  • London, England
  • Mexico City, Mexico
  • Montreal, Canada
  • Moscow, Russia
  • Oslo, Norway
  • Paris, France
  • Rome, Italy
  • Sao Paulo, Brazil
  • Seoul, South Korea
  • Stockholm, Sweden
  • Sydney, Australia
  • Toronto, Canada
  • Vancouver, British Columbia
  • Vienna, Austria
  • Warsaw, Poland
  • Former Eastern Bloc Nations