Paul is oldest of the two Cooley brothers, and is ten-years-old at the time of the journey; George is younger and his age is not established except that he is older than Rose Wilder Lane. Lane describes Paul as a big boy and states that he never lies. Paul drives the second Cooley wagon for most of the trip, though Mrs. Cooley drives the second wagon through towns and over bridges—which greatly annoys and somewhat shames Paul. Paul proves an entirely dependable youth. At Mansfield during the first few weeks, Lane and Paul are inseparable in their exploration of the woods. Later, Paul and George are apparently apprenticed to be hoteliers and go to live in the Mansfield Hotel. Little substantive biographical details are offered.