Police say the deceased man, woman and child have been identified as 49-year-old Francis Adolf, his wife 44-year-old Bonnie Adolf and their child 6-year-old Francis Adolf Jr.
Pitman Police Department officers found the bodies shortly after 10:00 a.m. Tuesday in the home on Kenton Avenue.
Autopsies on the three to determine the cause and manner of death are pending.
Police say Francis Adolf left writings indicating he intended to harm himself and family members.
There was no reported domestic violence history between the Adolfs.