From the outset, prime ministers attempted to propose candidates or lobbied to influence the monarch's decision on appointments, but the Royal Household adamantly guarded information about potential names. After 1931, when the Statute of Westminster came into being and the Dominions of the British Empire became independent states, equal in status to the UK, the Order of Merit remained an honour open to all the King's realms; thus, as with the monarch who conferred it, the order ceased to be purely British.
From its inception, the order has been open to women, Florence Nightingale being the first woman to receive the honour, in 1907. Several individuals have refused admission into the Order of Merit, such as Rudyard Kipling, A. E. Housman, and George Bernard Shaw. To date, Prince Philip, Duke of Edinburgh, remains the youngest person ever inducted into the Order of Merit, having been admitted by Queen Elizabeth II in 1968, when he was 47 years of age