Born in Ghana, Mr. Lincoln, 33, was given his name by his grandfather, "because Abraham Lincoln freed the slaves," he explained. The grandfather was so enamored of Lincoln that he gave his daughter-in-law a cow for giving birth on Feb. 16, since Lincoln was the 16th American president. Mr. Lincoln is standing on the stage in the Great Hall of Cooper Union, where in 1860 Abraham Lincoln made a historic speech that made him a national figure. His pose, however, echoes a photograph by Mathew B. Brady taken in 1864.