Sisters Patty Smith Hill & Mildred J. Hill co-wrote "Good Morning To You", which became the melody for this song
[DOC] [TLE] Happy Birthday song copyright is not valid, US judge rules | Stuff.co.nz [PAR] Sep 23, 2015 ... Patty Smith Hill and Mildred J. Hill wrote the song for Patty's ... original lyrics Patty 
wrote were: "Good morning to you / Good morning to you ... Patty later said that 
she had worked with her sister to compose a simple melody to match the ... 
became the Happy Birthday tune and even whether Patty Smith Hill... [DOC] [TLE] Feel FREE To Sing 'Happy Birthday' Song!