Answer: George W. Young who was likely a slaveholder
Explanation:
The text presented is an advertisement that offers a reward to capture Sophia Gordon. About this woman, it is explained she is a runaway (term to refer to slaves that scaped), and also, she is "copper color", which confirms she is a black woman who likely scaped from her slaveholder. Moreover, at the end of the document, the author explains "I will give the above reward", which shows the author of this document is the slaveholder looking for Sophia. Additionally, the name George W. Young was added at the end, which is likely is the name of the slaveholder. According to this, the person who placed the advertisement is the slaveholder George W. Young
