Helen Armstrong is an author and member of The Tolkien Society. She designed the logo of the Tolkien Society, and is a frequent contributor to Mallorn. She wrote two entries in the J.R.R. Tolkien Encyclopedia (Arwen and Aragorn), and compiled The History of Middle-earth Index.
- 1993: Mallorn 30
- "It Bore Me Away"
- 1998: Mallorn 36
- "There Are Two People In This Marriage"
- 1995: Proceedings of the J.R.R. Tolkien Centenary Conference
- "Good Guys, Bad Guys, Fantasy and Reality"
- 2006: Amon Hen 199
- 2006: Amon Hen 202
- "Review: Smith of Wootton Major [extended edition]"
- 2008: Amon Hen 209
- "How Elrond Got His Harp"