ðə wˈɛstmoːɹlənd ɡlˈæs kˈʌmpəni ʌv ɡɹˈeɪpvɪl, pˌɛnsɪlvˈeɪniə bɪɡˈæn mˈɑːɹkɪɾɪŋ ðɛɹ ɡlˈæswɜːk æz mˈɛɹi ɡɹˈɛɡɚɹi ɪnðə nˈaɪntiːnhˈʌndɹɪd twˈɛnti z.
The Westmoreland Glass Company of Grapeville, Pennsylvania began marketing their glasswork as Mary Gregory in the 1920s.