Leslie Walker Coleman was the youngest of eleven children born to Henry Coleman and Margaret Jane Walker. Henry was the licensed victualler of the Langlo Crossing Hotel. Leslie’s mother, Margaret Jane Powis, formerly Coleman née Walker, is also buried at the Langlo Crossing Historical Cemetery.
According to the Queensland Times on 14 January 1903, on Monday 12 January, Leslie Coleman, aged 12 years, died suddenly. "It appears that he had been suffering from dengue fever, and was being brought to Charleville for medical treatment, but when at the Box Creek Hotel, he was suddenly seized with a fit of coughing, and died. Much sympathy is expressed for his parents."