Give Me a Home Among the Gumtrees was an entry to replace what song attributed to John Bull?
God Save the Queen: "God Save the Queen" (alternatively "God Save the King", depending on the gender of the reigning monarch) is the national or royal anthem in a number of Commonwealth realms, their territories, and the British Crown Dependencies. God Save the Queen:  The author of the tune is unknown and it may originate in plainchant, but a 1619 attribution to John Bull is sometimes made.
i don't know