Sisters Patty Smith Hill & Mildred J. Hill co-wrote "Good Morning To You", which became the melody for this song
The original 
lyrics Patty wrote were: Good morning to you / Good morning to you ... became 
the "Happy Birthday" tune and even whether Patty Smith Hill had... [DOC] [TLE] Patty Smith Hill - New World Encyclopedia [PAR] Patty Hill and her sister Mildred wrote the song Good Morning to All, which they 
sang ... Good morning to you,: Good morning to you,: Good morning, dear 
children,: Good ... to All, which later became the internationally known Happy 
Birthday tune.