Spouse: Omallore Chakkalayil Mammen Mariamma married
Children: Mathai Thomas, Thomas Thomas, Thankamma Thomas, Mercy Thomas
P.M.Thomas's Heritage
Parents: Thomas Mathai, Kalkooppara Muthedathu Kochunju Aleyamma
Siblings: P.M.Varughese, P.M.Abraham, P.M.Mathew, P.M.Samuel