Analyzing the Ages of Signatories to the Harper’s Letter and The Objective’s Counter-letter: A Case Study in OSINT Techniques

Intro

Stats

Harper’s Letter Statistics:

The Objective’s Letter Statistics:

Age Comparison Graph

Age Comparison Graph Highlighting Rough Generational Demarcations

Methodology

  1. Full birth date from independent public source
  2. Birth date from self-reported public source
  3. Age from public records search
  4. Miscellaneous
  • Full name with middle name or initial
  • Other known names
  • Cities and states registered in
  • Possible relatives
  1. Birth Year on Wikipedia, Current Age through Public Records Search
  2. Past Age Benchmark from Graduation Year, Current Age through Public Records Search
  3. Past Age Benchmark from Miscellaneous Public Information, Current Age through Public Records Search
  4. Past Age Benchmark from Article, Current Age through Public Records Search
  5. Self-Reported Past Age Benchmark, Current Age through Public Records Search
  6. Very Specific Result from Public Records Search
  7. Birth Year on Wikipedia, Age through Public Records Search

Miscellaneous

Conclusion

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Center for Digital Journalism at Columbia Graduate School of Journalism

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