Citation - Pennsylvania Packet-Philadelphia: 1779.11.09

PP-P.779.125
9 Nov 1779:33
October 30.  To the Public.  The subscriber has opened his
School at the Long-Room in Carter's Alley, for the tuition
of young ladies and gentlemen in the polite art of Dancing. 
Those who are pleased to employ him may depend on having
their children taught in the most approved method, and the
utmost attention paid to their manners and decorum, by
Their most obedient servant, William M'Dougall.
N.B. An Evening School is opened for grown gentlemen.