UMandisa Lateefah Thomas (owazalwa ngo-1976)ungumsunguli nomongameli we-Black Nonbelievers Inc. Uke wakhuluma ezingqungqutheleni nasemicimbini yezwe, futhi wakhuthaza i-ajenda yeqembu emithonjeni yezindaba. Ukukhuliswa kukaThomas bekusemkhayeni ongahlangene nenkolo, onomzali oyedwa, kepha uchaza ugogo wakhe njengomuntu “okholwayo okholwayo”.Ngesikhathi eneminyaka engamashumi amabili nanye, uThomas wathuthela e- Atlanta nomyeni wakhe, lapho amasiko enza ukuthi kube nzima ukuphila impilo yezwe.Lesi sehlakalo samholela ekutholeni Abangakholwa Abamnyama. Ubheka inkolo, futhi ubuKristu ikakhulukazi, ukuthi buye bangena ebuntwini base-Afrika-baseMelika ngenkani. UThomas ukhulume eMhlanganweni Kazwelonke Wama-American Atheists ka-2013 .Ngawo lowo nyaka wahlela iBlackout Secular Rally eNew York, umcimbi wokuqala ongaphandle wase-United States owawuholwa ngabangabonakali ngokwebala, kanye nomhlangano wokuqala wezwe owawugubha ukwehluka ngokobuhlanga. Ubonga u-Ayanna Watson ngokusiza ekuthuthukiseni umqondo ngemuva kokuphumelela kweReason Rally ka-2012. Ku-2017, uThomas waziwa ngegama kumthethosivivinywa (i-SCR-79) owethulwe yiSenator kahulumeni uRichard Pan, futhi wamukelwa yiCalifornia State Senate, ememezela u-Okthoba 15, 2017 njengomgubho waminyaka yonke we-16 weCalifornia Freethought Day.