Blog authors in response

Hi I have three blog authors and when trying to respond to someones blog post the author always defaults to my name and not the name of the writer. Their name is in the contents tab , I do however have turned off author name and bios and have manually entered them because I have used the blog design on other pages where I do not want seen author....how can the person who wrote the blog write a response with their own name showing and not mine?

The default name will be yours, i.e. the account holder. Have you got the authors set up with Squarespace accounts with permissions on the website or are they "Basic Authors"

https://support.squarespace.com/hc/en-us/articles/221530967-Managing-blog-post-authors

If you respond from your account, it will be your name that is responding.