Once upon a time the spelling of my name may have been unique, but in the last few years, I have found that there are dozens if not hundreds with my exact same first and last names. One of them was even in the same hospital, same unit and same floor with me about 4 years ago- I won't even go into all of the confusion and mixed up blood tests that happened during that time.
There are no people with the names of PROCTOR or KEY in the Emancipation book. I am wondering if you understand that this book does not contain records for slaves who were set free after the Civil War, in 1865. It only has records on slaves who were given their freedom during the times of slavery in North Carolina from 1713- up till about 1860, and who petitioned the Courts and the North Carolina General Assembly to be freed from their bondage. Most of the slaves did not have surnames during that time, and were only given surnames by the officials, and many of them were just referred to by a single name in the records. The other thing is that only about 27 counties are represented in the book, so of course, not all slaves in NC are covered by it. So, in short, this book will only be of help to you if you have found that your ancestor was free prior to 1860, that is, you have found them in the Census records and you have followed them back as far as you can before 1860.