Sarah Palin's daughter gives birth to a son: report Mon Dec 29, 2008 7:20pm EST ANCHORAGE, Alaska (Reuters) - Alaska Gov. Sarah Palin's teenage daughter Bristol has given birth to a son, People magazine reported on Monday. The 7 lb 4 oz (3.3 kilogram) baby was born on Sunday in Palmer, Alaska, and is named Tripp Easton Mitchell Johnston, reported People, who spoke to Sarah Palin's aunt Colleen Jones. "The baby is fine and Bristol is doing well. Everyone is excited," Jones told the magazine. The couple have said they plan to marry. The governor's office declined to comment on...