An inter-agency search and rescue team in California on Friday also recovered some personal items and numerous parts of a vehicle from a swollen river in which the missing Indian family was travelling last week.
"Several items have been positively identified, by family members, as belonging to the Thottapilly family", it said.
All eight people in the vehicle are presumed dead in the accident, according to authorities.
Just weeks after the Hart family perished in a fatal plunge from an ocean overlook along the Pacific Coast Highway in Northern California, rescuers were searching for another family feared to have driven into water in the same county.
The family of four - two parents and two children - was traveling from Portland, Oregon, to their home in Santa Clarita, California, last week when they stopped communicating with relatives.
The Mendocino County Coroner's office recovered the body on Friday about seven miles south of where the SUV was seen entering the rain-swollen river.
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Police identified their vehicle as a maroon or burgundy 2016 Honda Pilot with license plates 7MMX138.
The vehicle is reported to have submerged in the river around 1:10 pm on April 6.
The poster said their last known location was the "Klamath-Redwood National Park area".
Police say Jennifer Hart had a blood alcohol level of 0.10, which is over the legal limit, when killing her family.
Siblings Markis, Abigail, and Hannah Hart were adopted by Jennifer and Sarah Hart in Colorado County in 2006, a Texas Department of Family and Protective Services spokesperson confirmed Wednesday morning.
The bodies of three of the Hart's children were not found in the wreckage.
A couple vacationing reportedly saw the body and pulled it from the surf before calling authorities.