Preston of 1801
Pat Woods 1958
Duple minor longways
Recording: prince_william_of_glo_s_ter_s_waltz_070_bn14iw-06.mp3.zip

Al 1-8 Ist corners set forward right and left, turn single to right back to places,
       then change places passing right shoulders.
A2 1-8 2nd corners the same.
B  1-8 Taking ballroom position, couples waltz around each other counter-clockwise,
       ending in lines, proper.
C  1-8 Ist and 2nd couples right hands-across once around, and left hands-across back.

See an animation of this dance.
Video: https://www.youtube.com/watch?v=Uc4BBw5hoi4

William IV, Prince William Frederick of Gloucester (1765-1837), was the third son of George III. He succeeded George IV in 1830, and in turn was succeeded in 1837 by Victoria, the daughter of his brother, Edward, Duke of Kent.