LITTLETON The family of an Air Force nurse missing since November is offering a $10,000 reward for information leading to her whereabouts.Nonnie Dotson, 33, was last seen Nov. 19, when she left the home of her brother Tony Dotson in Littleton for a smoothie, her family said. She was due to return to duty at Lackland Air Force Base in Texas two days later.She and her infant daughter, Savannah, were in Littleton to visit family.”She adored her daughter. She meant everything to her,” said Nonnie Dotson’s twin, Beau Dotson, a U.S. Department of Defense communication specialist. “She would never leave her behind.”Savannah is now living with her grandmother in California.Savannah’s father, Edward Vehle, 53, has given authorities two receipts proving he was in Texas when his former girlfriend disappeared, The Denver Post reported.Jefferson County sheriff’s officials have said they have not found evidence of foul play.