H.G. ยท H. Gillman
| title | ISBN-13 | year of publication |
|---|---|---|
| A Light That is Shining: Introduction to the Quakers | 978-0-85245-213-4 | 1988 |
| A minority of one: A journey with Friends | 978-0-85245-207-3 | 1988 |
| Consider the Blackbird | 978-0-901689-58-0 | 2007 |
| Light That is Shining, A: An Introduction to the Quakers | 978-0-85245-346-9 | 2003 |