Sisters Patty Smith Hill & Mildred J. Hill co-wrote "Good Morning To You", which became the melody for this song
The combination of melody and lyrics in "Happy Birthday to 
You" first .... sisters, Patty and Mildred J. Hill, introduced the song "Good Morning 
to All" to... [DOC] [TLE] Mildred J. Hill - Wikipedia [PAR] While teaching at the Louisville Experimental Kindergarten School, the Hill 
sisters wrote the song "Good Morning to All"; Mildred wrote the melody, and Patty 
the... [DOC] [TLE] History of the "Happy Birthday to You" Song - Music Education [PAR] The melody and lyrics were written by two sisters - Mildred J. Hill (born 1859) ... 
Mildred was also an educator who later on became a composer, organist and 
pianist.