While this song is thought and beloved, many are stunned to know that it wasn’t originally an Irish lullaby. The very first Edition of “Danny Boy” was published in 1910 by an English lawyer and lyricist, Frederic Weatherly. Later, his Irish-born sister-in-law shared the song “Londonderry Air" with him, https://bigzvideo.com/wheels-on-the-bus-more-nursery-rhymes-baby-songs/