When Baldomero Mapayo Atog was born about 1906, in Manay, Davao Oriental, Philippines, his father, Eugenio Atog, was 28 and his mother, Eugenia Mapayo, was 26. He married Enoviba Similatan about 1921, in Manay, Davao Oriental, Philippines. They were the parents of at least 1 son and 1 daughter. He died in 1956, in his hometown, at the age of 50.