...n, and it was then that the despatch was found by Colonel Silas Colgrove, who took it to division Headquarters, whence it was quickly sent to the Federal commander. General McClellan reported to General Halleck that the lost order had been handed him in the evening, but it is evident that he had it at the time of his noonday despatch to the President, from his reference to the facts it exposed. It is p...