Just kidding Stan. The reporter/general did not elaborate, so he likely did not know any of them. Remember, no "associations" were allowed to identify themselves, so we will probably never learn more about the mourners. Obviously, friends and family would be a small minority of the "thousands" who came to pay respects.
Here is the book.
The life of Gen. Albert Sidney Johnston: embracing his services in the armies of the United State, The Republic of Texas, The Confederate States ... By William Preston Johnston