By roots, he is an Indonesian of Batak background and by religion, a member of the Batak Christian Protestant Church.
ໂດຍຮາກ, ລາວເປັນພື້ນຖານຂອງອິນໂດນີເຊຍຂອງ Batak ແລະສາດສະຫນາ, ສະມາຊິກຂອງໂບດ Batak Christian Protestant.