WASHINGTON (CNN) -- One of the attorneys defending Lewis "Scooter" Libby was absent Wednesday as the judge began to issue final instructions to the jury, because she was ready to make a presentation of her own -- a baby girl, delivered Friday as the jury continued to deliberate Libby's fate.

Alexandra Walsh, a member of the law firm Baker Botts, delivered Francis Somerville O'Brien at a Washington-area hospital, a spokeswoman for the defense team told CNN.

Her husband, Brendan O'Brien, was present in the delivery room. This is the couple's third child.

One of the jurors, who apparently had observed the advanced state of Walsh's pregnancy during the trial that opened Jan. 23, had noted that the attorney was missing from the defense table and asked if the time had come.

Walsh -- a 2001 graduate of Stanford Law School -- was named by Washingtonian magazine last year as one of the "40 top lawyers under 40." She has focused on white-collar criminal law and appellate cases.