A celebrant asks:

I’m marrying a couple next year – Party 1 is female; Party 2 is a transgender male. What I want to clarify is that if Party 2 has neither a birth certificate or passport in his common usage name that’s not a problem as long as I am satisfied he is who he says he is. For example, is it enough that I know people who know him, and that he is listed on his employer’s website? My sense is that it is ridgy didge, but wanted to check that I’m right.