Hi Kampervan,

Scroll down to a list of recordings of this song

It usually helps to have a little more information about the singer(s) - male, female, a group, a choir, a band etc - musicians, instruments, where and when the song was heard e.g. on a radio program, on TV, on a recording, (i.e. who, what, where, when) and anything your sister can remember about the song.

More information may jog the memories of the people looking for the songs.

Ed Sheeran's version Understated and beautiful, in my opinion.

Helen