tˈɪbəl wʌz bˈɔːɹn ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪn ɪn ɹˈiːdɪŋ, bˈɜːkʃɚ, ænd wʌz ˈɛdʒuːkˌeɪɾᵻd æt ðə ɹˈiːdɪŋ jˌuːnɪvˈɜːsᵻɾi skˈuːl ʌv ˈɑːɹt.
Tibble was born in 1909 in Reading, Berkshire, and was educated at the Reading University School of Art.