...bled by severe illness, Col. Isaac G. Seymour commanded the Louisiana brigade. In the afternoon, at the charge at Cold Harbor, he was shot from his horse and died in a few minutes. Here also fell Maj. Robert Wheat , known familiarly as Bob Wheat, cheeriest of souls, and not a stranger to the enemy, who remembered him as the chief of the Tigers at Manassas. The Louisiana brigade fought desperately at Gaines' M...