Verified answer

EDIT

純子　is mostly read as "Junko". But rarely "Sumiko" is possible.

Which way to read depends on her mother or father or someone else who named her.

絹代　is "Kinuyo". No other way to read.

Go to google, the click on Translator.

are you Chinese?

纯子 and 绢代 are sound like Japanese name, but not Japanese letters