Contributors 1 - 33

• Johnson, A. J. [5]
• Campbell, Albert H. [5]
• Lindenkohl, A. [4]
• Gilmer, Jeremy Francis [3]
• Hotchkiss, Jedediah [3]
• Abbot, Henry L. [3]
• United States. Army. Corps of Engineers [3]
• Colton, G. Woolworth [2]
• Magnus, Charles [2]
• United States Coast Survey [2]
• Hughes, William C. [2]
• United States. Army of the Potomac. Engineer Dept [2]
• J. T. Redd & Son [1]
• Sheppard, Edwin [1]
• Sneden, Robert Knox [1]
• Philadelphia Inquirer and Daily News (Firm) [1]
• Wells, Jacob [1]
• Ludwig, C. L. [1]
• United States. Army of the James [1]
• Humphreys, Benjamin Grubb [1]
• Baumgarten, J. [1]
• Preston, Noble D. [1]
• Stevens, W. H. [1]
• Sholl, Charles [1]
• Palfrey, John Carver [1]
• United States. War Dept. Engineer Bureau [1]
• Landers, Howard Lee [1]