The signers of Petition 50 included prominent Indonesian independence supporters as well as government and military officials, such as Trimurti and the former Governor of Jakarta Ali Sadikin.
Para penandatangan Petisi 50 termasuk pendukung kemerdekaan Indonesia terkemuka serta pemerintah dan pejabat militer, seperti Trimurti dan mantan Gubernur DKI Jakarta Ali Sadikin.