Kawilarang's son, Edwin, is head of the purnawirawan organization FKPPI and, as such, part of the so-called Keluarga Besar Purnawirawan (KBK), which translates to English as the 'Greater Family of Ex-military'. Under the New Order or "Orde Baru", he also was an official at Bimantara, a company owned by Suharto's son Bambang Trihatmodjo. Edwin was a member of the People's Consultative Assembly from 1997 to 2004, the Regional Representative Council from 2004 to 2009, and the People's Representative Council from 2009 to 2014. In each position, he represented constituents from the province of North Sulawesi.