Lee, P. G. (1932). Necrology: Henry Fitzpatrick Twiss. With portrait.
Lua i Stíl Chicago (17ú heag.)Lee, Philip G. Necrology: Henry Fitzpatrick Twiss. With Portrait. 1932.
Lua MLA (9ú heag.)Lee, Philip G. Necrology: Henry Fitzpatrick Twiss. With Portrait. 1932.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
