Ramba uchinyora ndima iyi - Gare gare akabatanidzwa nekambani inobudisa magazini muPittsburgh uye nemapepanhau makuru muNew Orleans, Louisiana. Akanga achishanda muchikepe chinotakura mvura muRwizi rweMississippi kubva muna 1841 kusvika muna 1847 uye mumigodhi yegoridhe muCalifornia muna 1851. Akabatsira mukuvakwa kweCambria Iron Works muJohnstown, Pennsylvania, muna 1853, uye akashandiswa nekambani iyoyo kusvika muna 1861, paakasiya basa. Campbell akanga ari nhume kuRepublican National Convention yokutanga muPhiladelphia muna 1856
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