| Clue | Source | Date |
|---|---|---|
| Marshall who wrote that "the medium is the message" | ||
| Marshall who said 'the medium is the message' | Wall Street Journal | 01 Sep 2023 |
| Marshall in LA worked with 25 | ||
| Media maven Marshall | USA Today | 28 Dec 2017 |
| Media maven Marshall | ||
| Marshall ____ (futurist) | Canadiana | 03 Oct 2016 |
| "The medium is the message" man | ||
| "Understanding Media" author | ||
| Medium-message man | ||
| Marshall of the media books |