After school, James worked for Robertson and Elliott, which sold Chevrolets. He trained as a mechanic for three months and then worked in the family cardboard box manufacturing business R G Bartlett and Co. He married Laurie King in 1939 and they had four children. James played cricket for the OKGA and was a founding member of the Senior Knoxonian Club. He was President of the Senior Knoxonians from 1984 to 1990.
His brother George (OKG34), his sons Rodger (OKG61) and Graham (OKG71) also attended the School as well as his nephew Robert King (OKG63) and his grandson Kenneth (Jack) Coles (OKG09).

James Bartlett pictured in the first Track and Field uniform.