Reposting the timeline.
March 2004: Earliest known public record that shows Jennifer Hart and Sarah Gengler, both from South Dakota, residing in Alexandria, Minnesota.
Summer 2004: The Harts take in a foster child named Lee. Then they later abandoned her the next Spring after they dropped her off at a therapist’s appointment, never to see her again.
May 2005: Sarah Hart petitions to change her last name from Gengler to Hart.
September 2006: Jennifer and Sarah Hart adopt siblings Markis, Abigail and Hannah.
September 2008: According to a police report from Alexandria, Minnesota, Hannah, then 6, tells authorities that one of her mothers bruised her with a belt. Asked about the beating, Jennifer and Sarah Hart tell a police investigator and social worker the girl had fallen down the stairs.
February 2009: Jennifer and Sarah adopt Devonte and two of his siblings — bringing their number of children to six. An article from Paper Trail, a New Zealand-based news outlet, describes his adoption. The article said by age 4, the boy had been abused, neglected, shot at and had endured other traumas.
November 2010: Police in Alexandria, Minnesota interview Abigail Hart, 6 at the time, after a teacher discovers bruises stretching from her sternum to her navel. The girl says Jennifer Hart hit her with a closed fist, put her head in a cold bath, then hit her again, court records show. She was then grounded, the girl told police, which meant she had to stay in bed and miss lunch.
December 2010: Alexandria, MN home listed for sale.
April 2011: Sarah Hart pleads guilty to abusing Abigail Hart and is sentenced to a year of probation for misdemeanor domestic assault, court records show. Sarah told police she was the one who hit Abigail, even though the girl told authorities her mother Jennifer had done it. The next day, all six of the Hart children are taken out of public schools. They never attend public school again.
October 2011: The family lives in Alexandria, Minnesota, for a time and takes part in local activism. Hart family members including Devonte and Jennifer Hart participate in an Occupy Minneapolis demonstration.
2012: According to friends in Oregon, Sarah Hart travels to Portland to look for work. Jennifer Hart and their children later join her. Hannah loses front teeth after allegedly falling in house acceding to Jen's FB post.
August 2012: Alexandria MN house re-listed for sale.
October 2012: Sarah begins work at Kohls in Oregon (Sarah's LinkedIn resume).
December 2012: Jen and kids travel to Oregon, getting a ride with the Lees after rollover accident in Missoula According to Statesman Journal article.
April 2013- Alexandria, MN house sold. The family moves to West Linn, family friend Alexandra Argyropoulos tells Oregon child welfare officials that the Hart parents have been depriving their kids of food as punishment, she says. The Harts break off contact with her when they learn of it. Argyropoulos says she was told the Hart children had been interviewed by Oregon officials; it was apparent that each child had been coached by their mothers on what to say; and nothing more could be done by the Oregon Department of Human Services.
2013: Portland Portland musician of the band Nahko and Medicine for the People Ribner began offering music classes to the Hart children. The Hart children also started volunteering at the Good Neighbor Family Pantry
July 2013: The police department responds to a call to the Hart's house.
November 2014: Family members participate in a Portland protest of a Missouri grand jury declining to indict a Ferguson police officer in the fatal shooting of Michael Brown. Devonte and a Portland police officer hug, and the photo of the moment goes viral.
March 2016: Family members join U.S. Sen. Bernie Sanders of Vermont onstage during a presidential campaign rally in Vancouver.
May 2017: Jennifer and Sarah Hart buy a two-story, 3-bedroom home on 2 acres of land in the Woodland area of Clark County, Washington, property records show.
June 2017: Jen's rough year FB post.
March 23, 2018: The Washington State Department of Social and Health Services opens a Child Protective Services investigation in which the Hart children are "identified as potential victims of alleged abuse or neglect."
March 23, 2018: The Washington State Department of Social and Health Services attempts without success to make contact with the Hart family.
March 24, 2018 - 3:00 AM: Sarah Hart sends a middle-of-the-night text message to friend Cheryl Hart, only hours after child protective services first visited the family's home, saying she was so sick she might have to go to the hospital. The friend never made contact again.
March 24, 2018 - 8:14 AM: The family is in or around Newport, Oregon, police say. It's believed they continue south on Route 101 until they reach State Route 1 in Leggett, California.
March 24, 2018 - 8:00 PM The Harts travel south on State Route 1 until they reach the Fort Bragg area in Mendocino.
March 25, 2018 - 9:00 PM: The family leaves Fort Bragg.
March 26, 2018: The Washington State Department of Social and Health Services again unsuccessfully attempts to make contact with the Hart family. They call 911 and ask the Sheriff's Department to do a welfare check on the family.
March 26, 2018 - 1:15 PM: Cheryl Hart calls 911 and asked the Sheriff's Department to do a welfare check on Sarah Hart. "Nobody has been able to get ahold of her, talk to her or seen her since," she told the dispatcher.
March 26, 2018: A passer-by along Highway 1 in Westport, California, calls 911 after looking down a 100-foot embankment and seeing an SUV upside down on the rocky shoreline. Five people are found dead: three children outside the SUV and two women inside.
March 27, 2018: The Washington State Department of Social and Health Services makes a third unsuccessful attempt to contact the Hart family.
March 28, 2018: The women are identified by the Mendocino County's Sheriff's Office as Jennifer and Sarah Hart and their children as Markis, Jeremiah and Abigail. Three of their other children: Devonte, Hannah and Sierra, remain missing. Sheriff Tom Allman said a search is ongoing for the remaining three children.
March 29, 2018: Police continue to search for the three missing children, including Devonte, and to investigate why the SUV plunged off the California cliff. Authorities don't know if the kids were also in the car, but are basing their search on the assumption that they were thrown from the car into the cliffs or the surf.
March 31, 2018: Officials reveal the speedometer on the Harts' wrecked SUV was "pinned" at 90 mph.
April 2, 2018: Officials say the crash may have been intentional, saying data taken from the family's SUV shows the vehicle came to a complete stop at the Route 1 pullout before speeding off the cliff. The search for the missing children becomes a "recovery effort."
April 2, 2018: "I'm to the point where I'm no longer calling this an accident, I'm calling it a crime," Mendocino County Sheriff Tom Allman tells HLN's Ashleigh Banfield.
April 7, 2018: An unidentified body, believed to be that of a black female, is found in the ocean near the site of the crash. Officials said an identification could take weeks.
