| About Betty Fold: Brief biography of Henry Holiday, including information about his involvement with the suffragette movement. From Betty Fold Guest House, once Holiday's home in the Lake District. |
| Henry Holiday (1839-1927): Notes on the Victorian painter and designer Henry Holiday from Bob Speel. |
| Holy Trinity Church, Casterton: Victorian church in Cumbria with wall paintings and stained glass windows by Henry Holiday. Detailed descriptions of the pictures. |
| National Museums Liverpool - Dante and Beatrice: Presents the oil on canvas painting and provides a brief description. |
| The Hunting of the Snark: An Agony in Eight Fits by Lewis Carroll, with illustrations by Henry Holiday. Text and illustrations of this children's book from Allison Randal. |
| The Hunting of the Snark: An Agony in Eight Fits by Lewis Carroll, with illustrations by Henry Holiday. Text and illustrations from University of Virginia Library. |