Cut and paste the above website URL into your browser if you would like to look at images of the first edition of the 1611 King James Bible including the Apocrypha books. One of the things you should notice are footnotes in the margin of the Bible inserted by the translation comittee. There will normally be two vertical lines next to the note.
Some would have you to believe that the translators were perfect. If this were true and they had complete knowledge someone needs to explain why there are footnotes in the Bible.
That fact is sometimes they (the translation committee) were not sure and inserted a footnote to provide additional information. This is a practice continued with today's modern literal translations like the NASB, ESV and NKJV.
One should also take the time to read the preface to the 1611 Bible to gain an appreciation of how they viewed themselves and their role as translators.
Check it out yourself and compare it to today's KJV.