George E. K. Awai and his Royal Hawaiian Quartet popularized the small, guitar-like instrument when they performed at the Panama Pacific International Exposition at San Francisco in 1915. From then on to the early 1920s, the ukulele became popular on the mainland United States.
<p>“A few suggestions for xmas!: a--piano, music cabinet, piano scarf, guitar, mandolin, violin, banjo, music roll, bound volume of Hawaiian songs, gramophone, toy drums”
</p><p>Bergstrom Music Co., Ltd.
</p><p>Hawaiian star, Dec. 20, 1911, Page 7
</p>
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Chronicling America - <a rel="nofollow" class="external free" href="http://chroniclingamerica.loc.gov/">http://chroniclingamerica.loc.gov/</a>, Hawaii Digital Newspaper Project - <a rel="nofollow" class="external free" href="https://hdnpblog.wordpress.com/">https://hdnpblog.wordpress.com/</a>