Rubuta ci gaba ga wannan sakin layi - Carter ya shiga Jam'iyyar Free Soil a 1848, kuma a 1850 ya rubuta wa Boston "Atlas" jerin labarai a cikin martani ga Francis Bowen na kai hari kan 'yan juyin juya halin Hungary
Ka yi haƙuri. An sake buga waɗannan labaran a cikin wata takarda mai suna "The Hungarian Controversy" (Boston, 1852). An ce sun haifar da kin amincewa da nadin Bowen a matsayin farfesa na tarihi a Harvard. A lokaci guda Carter ya shirya, tare da amincewar Kossuth, wani babban littafi mai suna "Kossuth a New England" (Boston, 1852).