J.B. Mummery is also associated with the following works, whose performance and / or publication has not yet been traced:
- Minnie Miller; or, The Ups and Downs of Colonial Life (1898).
- Frank Roland : In a Dark Cloud with a Silver Lining (n.d.)
- Fortune's Wheel : A Tale of the [Palmy?] Days (c.1898): sometimes given as Fortune's Wheel; or the Gold Fiend.
- Retribution; or, Murder Will Out (n.d.).
- [Good?] Time and Harvests (n.d.).