- en.wikipedia.org R. A. F. Penrose Jr.Richard Alexander Fullerton Penrose Jr. ... Grove Karl Gilbert (1909). Arnold Hague (1910). William Morris Davis (1911). Herman LeRoy Fairchild (1912).
- playback.fm person/matthew-arnoldmother. Mary Penrose. siblings. Jane Martha Arnold. Susanna Elizabeth Lydia Arnold. ... Richard Penrose Arnold. Lucy Charlotte Arnold.
- onlineradiobox.com track/666134312549949365/Sir John Barbirolli - Variations on an Original Theme (Enigma), Op. 36 R.P.A.(Richard Penrose Arnold).
- music.163.com song?id=135470704336 "Enigma":Var. 5, R.P.A. (Richard Penrose Arnold). 歌手:Daniel Barenboim / London Philharmonic Orchestra.
- muzmos.org info?id=70297825Название: Variations on an Original Theme Enigma Op. 36 V. R. P. A. (Richard Penrose Arnold) (2002 Remaster) (2002 Remaster).
- cooldj.club song/62874-sir-john-barbirolli/…36 (Excerpts): V RPA (Richard Penrose Arnold) №13236119.
- pesni.guru text/элгар-энигма-вариации-v-…R.B.T. (Richard Baxter Townshend) (0).
- tr.celeb-true.com matthew-arnold-english-poet-…Dikkat çekici bir eğitimci ve tarihçi olan Thomas Arnold'un ikinci çocuk ve en büyük oğlu ve Anglikan bir din adamının kızı Mary Penrose Arnold'du.
- musportal.pro track/1045963439-royal-albert-hall-…Royal Albert Hall OrchestraSir Edward Elgar - Elgar Variations on an Original Theme, Op. 36, Enigma V. R.P.A. (Richard Penrose Arnold).