Please answer the following question: Facts:   - death place: woodbridge township , province of new jersey    - caption: memorial new jersey at trinity episcopal church in woodbridge township ,    - birth name: jonathan singletary    - death date: 06 september 1724    - spouse: mary bloomfield      - birth date: 17 january 1640    - name: jonathan singletary , later dunham    - image: jonathan dunham woodbridgenj memorial.jpg    - birth place: newbury , massachusetts bay colony   Based on these bullet points, write a short biography describing the life of jonathan singletary dunham .
A:
jonathan dunham -lrb- january 17 , 1640 -- september 6 , 1724 -rrb- , known in his early life as jonathan singletary , was a prominent early american settler of woodbridge township , new jersey , who built the first gristmill in new jersey .he is u.s. president barack obama 's eighth great-grandfather and the first of obama 's dunham ancestors to be born in north america .