Arthur & Cathy Armstrong: Arthur is an Executive Director at Debevoise & Plimpton. Mr. Armstrong co-authored Net Gain – a book published by the Harvard Business School Press on the topic of Web-based business models – as well as articles for the McKinsey Quarterly on similar topics and on corporate organizational structures. Cathy is his wife.

The phone number is New York.

There is no mention of either Arthur or Cathy Armstrong in the DOJ Epstein Files.

References:

1. https://epsteinsblackbook.com/names/arthur-cathy-armstrong
2. https://www.linkedin.com/in/arthur-armstrong-bb71668/
3. https://www.debevoise.com/armstrong-arthur-g?tab=biography