D. M. Bennett
DeRobigne Mortimer Bennett ( December 23 , 1818 – December 6 , 1882 ) , best known as D . M . Bennett , was the founder and publisher of "Truth Seeker" , a radical freethought and reform American periodical . 
<triplet> D. M. Bennett <subj> December 23, 1818 <obj> date of birth <subj> December 6, 1882 <obj> date of death