The spelling of the name "Wendell Urth" can be explained using the International Phonetic Alphabet (IPA). "Wendell" is pronounced /ˈwɛndəl/, with the stress on the first syllable. "Urth" is pronounced /ərθ/, with the stress on the second syllable. The "th" is pronounced as a voiced dental fricative, represented by the symbol "ð". Overall, the spelling accurately represents the sound of this individual's name in English phonetics.