|1. O'Horgan, Tom Collection.|
| Timeworm, by Quackenbush and Tom O’Horgan, 2 drafts, 1999-2000. |
Roses in Winter, screenplay by Quackenbush, 5th draft, 99 p., 2000; includes TNS from Quackenbush, Sep. 25, 2000.
Souls, by J. Vincent Edwards and Quackenbush; two drafts, 87p. and 100 p., May 1999; includes audition list; holograph notes, schedules; contact lists; notes.
The Cardinal, by Jan Quackenbush, 91 p., 1976.