Welcome Royal Charlie is from Songs of Scotland Vol.2 (1849), where the lyrics were written by Captain Charles Gray. The original lyrics concerned exploits of Prince Charles Edward Stuart in 1745.
The Auld Wife Ayont the Fire is a setting if an old Scottish tune found in manuscripts from the early 18th century. Subsequently, it has appeared as an air, a strathspey, a reel, a pipe reel, and a song air (including the song Welcome Royal Charlie).