HS
Hans Van Sumeren
Hans Van Sumeren Filmography
| 2011 | Drain the Great Lakes · as Self - Great Lakes Water Studies Institute |
| 2002 | Unsolved History (TV Series) · as Self - Hydronamics Expert |
| 2011 | Drain the Great Lakes · as Self - Great Lakes Water Studies Institute |
| 2002 | Unsolved History (TV Series) · as Self - Hydronamics Expert |