<P>She was only two feet, eight inches tall, but her legend reaches out to us more than a century later. As a child, Mercy Lavinia "Vinnie" Bump was encouraged to live a life hidden away from the public. Instead, she reached out to the immortal impresario P. T. Barnum, married the tiny superstar General Tom Thumb in the wedding of the century, and became a worldwide celebrity.</P><P>Their wedding would captivate the nation, preempt coverage of the Civil War, and usher them into the White House and the company of presidents and queens. But Vinnie's fame would also endanger the person she prized most: her similarly sized sister, Minnie, a gentle soul unable to escape the glare of Vinnie's spotlight.</P