The first child of Achmad Witoelar and Toti Soetiamah is Luki Djanatum Muhamad Hamim (1932). After graduating from ITB Department of Geology, he worked in Belitung at the State tin Company, then moved to Pertamin which later became Pertamina, from which he is now retired. Luki and wife Tita Augusta Niswan (1935) lived in Jakarta and Balikpapan, and currently reside in Cinere. Their children are Shanti Radianti (1969) who currently works in Total Indonesie, a French oil company and Tatang Firman (1971) who is doing a graduate studies in economics at Michigan State University, East Lansing Michigan.