Buuxi weedha soo socota: Wuxuu ka soo shaqeeyay Dagaalkii Mexico iyo Mareykanka Major James Duncan's Battery A, 2aad US Artillery, halkaas oo si joogto ah loogu sharciyeeyay "dabeecadaha wanaagsan" laga soo bilaabo darajada gaarka ah ee 1845 illaa darajada taliye labaad Juun 28, 1848, markii dambe wuxuu noqday mid joogto ah dagaalka kadib Janaayo 26, 1849. Benson waxa uu la joogay Batteriga A dagaalkii
Palo Alto, Resaca de la Palma, Monterrey, Vera Cruz, iyo Churubusco. Wuxuu u kacay darajo sarkaal koowaad oo ka amar qaata gacan bir ah oo ku jirta batteriga Duncan ee hoos yimaada sarkaalka qaybta Henry Jackson Hunt ee hareeraha Mexico City, gaar ahaan wuxuu ku firfircoon yahay Dagaalkii Chapultepec ee San Cosmé Garita.