Harrisburg is the capital of PA. I found it odd that the 1862 NYT misspelled Harrisburg - spelling it ‘Harrisburgh’.
For some reason the NY Times during this period adds an “h” to any city name ending with “burg”. E.g., Harrisburgh, Fredericksburgh, Vicksburgh. Harper’s Weekly doesn’t follow that practice, I’ve noticed. It’s a mystery.