ˈʌslɛɾə ɪz spˈɛld wɪð ˈeɪ "wˈaɪ" bɪkˈʌz nˈaɪntiːnθsˈɛntʃɚɹi skɹˈɪpt dɪdnˌɑːt dˌɪfɚɹˈɛnʃɪˌeɪt bᵻtwˌiːn ɐ kˈæpɪɾəl "wˈaɪ" ænd ɐ kˈæpɪɾəl "ˈaɪ."
Ysleta is spelled with a "Y" because 19th-century script did not differentiate between a capital "Y" and a capital "I."