What does Kingston mean?
An English place name and surname meaning 'king's town' or 'king's settlement' (Old English 'cyning' + 'tun'). A place-name origin referencing a king rather than meaning 'king' outright.
What does Legend mean?
A modern word-name taken straight from the English word 'legend' (ultimately from Latin 'legenda', 'things to be read'). It is an aspirational virtue/word name with no older history as a personal name.