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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Johnson, W.F. | 1899 | Entomological notes from Ulster | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1900 | Entomological notes from Ulster | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1900 | Entomological notes from Ulster | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1900 | Irish butterflies | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Johnson, W.F. | 1901 | Vanessa io in Ulster | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1901 | Vanessa c-album in Ireland | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1901 | Cerastis ligula, Eep., at Poyntzpass, Ireland | Journal | Ent. Monthly Mag. | Details... |
| Johnson, W.F. | 1901 | Phibalocera quercana attacking rhododendrons | Journal | Ent. Monthly Mag. | Details... |
| Johnson, W.F. | 1901 | Vanessa io, L., in Ireland | Journal | Ent. Monthly Mag. | Details... |
| Johnson, W.F. | 1902 | Late appearance of Vanessa io | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1902 | Insects collected in Co. Sligo | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1902 | Early appearance of Vanessa io | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1902 | Autumn Lepidoptera at Poyntzpass | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1902 | Lepidoptera | Book | | Details... |
| Johnson, W.F. | 1903 | Entomological notes of the season | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1903 | Dark variety of Hydroecia micacea at Poyntzpass | Journal | Ent. Monthly Mag. | Details... |
| Johnson, W.F. | 1903 | Ochsenheimeria birdella in a hayloft | Journal | Ent. Monthly Mag. | Details... |
| Johnson, W.F. | 1904 | Lepidoptera at Wexford | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1907 | Lepidoptera in the north of Ireland during 1906 | Journal | Ir. Nat. | Details... |
| Johnson, W.F. | 1909 | A late butterfly | Journal | Ir. Nat. | Details... |
1515 references found.