Simpson was the only child of William Paris & Martha Hudson Allsman to survive the cholera which is supposed to have killed his mother and 4 younger siblings in 1861.
Simpson likely lived with relatives Christian County while his dad was fighting in the Civil War and is recorded as living with his dad and his new wife, Philena, in Christian County IL during the 1870 Census. He subsequently died of pneumonia.
Site of interrment is suppositional. It is likely that he his buried in the same cemetery as many of his extended family in Long Cemetery.