| 2023-08-27 | Pioneer in psychedelics |
| 2021-06-29 | Timothy who wrote "Turn On, Tune In, Drop Out" |
| 2020-08-25 | 1960s counterculture guru Timothy |
| 2020-05-31 | 1960s counterculture figure |
| 2014-07-19 | Noted acid studier |
| 2011-06-02 | Doctor whom Nixon called "the most dangerous man in America" |
| 2010-02-11 | 1960s trip taker |
| 2007-05-29 | '60s guru Timothy |
| 2007-05-17 | Big name in '60s counterculture |
| 2005-09-01 | Actor/comedian Denis |
| 2004-01-05 | 1960's tripper Timothy |
| 2003-08-17 | 60's guru |
| 2002-05-19 | "The Psychedelic Reader" collaborator |
| 2000-02-21 | Timothy who took trips |
| 1999-10-07 | "Turn on, tune in, drop out" advocate |
| 1994-06-05 | 60's tripper Timothy |
| 1994-05-22 | "Politics of Ecstasy" author |