When Kerry was 11, his father was appointed legal adviser to James B. Conant, head of the US High Commission for Germany, which later became the US mission to the country. Kerry was sent for the next two years to boarding schools in Switzerland, joining his family in West Berlin only on vacations.
So from the time he was 11 until at least 13 he was either in Swiss boarding schools or spending his vacations in W. Berlin.
In that earlier version the reporter stated that when Kerry came home for vacation from his Swiss boarding school and his parents were out of the country, Kerry was sent to stay with his aunt and uncle on the farm.
Reuters' editors must have yanked that part out of the story. It did read like a hit piece on Kerry, which surprised me being that it was from Reuters.