In the books the family tree is never explicitly identified.

"The man" is not explicitly identified, but might be God.

Specifically which years, however, are not explicitly identified in the text.

Lucy as an adult is never explicitly identified in person.

None of this is identified explicitly in the book.

And wherein a user "does not need to explicitly identify themselves."

He was followed by a number of scholars who explicitly identified themselves with the akhbari.

The Qur'an, however, does not explicitly identify her as a prophet.

Douglas is one of the first authors to explicitly identify his language as Scottis.

As such they are often not explicitly identified as such.