adeleastaire

en.wikipedia.org/wiki/Adele_Astaire
"Adele Astaire (born Adele Marie Austerlitz, later known as Lady Charles Cavendish; September 10, 1896 – January 25, 1981), was an American dancer, stage actress, and singer. After beginning work as a dancer and vaudeville performer at the age of nine, Astaire built a successful performance career with her younger brother, Fred Astaire."
See them both in nearby photo

From her Wikipedia entry:
"After the idea of performing overseas was suggested, Adele and Fred agreed to take For Goodness Sake (renamed Stop Flirting) to the West End in London. On May 30, 1923, their show opened at the Shaftesbury Theatre and received a standing ovation."

This pair of photos were probably taken when they were sailing for London.

Thanks, swanq! We'll add some details to the online record.

en.wikipedia.org/wiki/Fred_Astaire
"Fred Astaire (born Frederick Austerlitz;[1] May 10, 1899 – June 22, 1987) was an American actor, dancer, singer, choreographer, and television presenter. He is widely considered the most influential dancer in the history of film."

See Adele, Fred's older sister in nearby photo

We have seen Fred and Adele Astaire, brother and sister, before in the Bain stream.