The Midlothian Police Department announced late Friday night that 12-year-old Jada Welch and 7-month-old Tristan Welch were located out of state.
Two adults - Scott Welch and Alethia Tyson - were also found with them.
Their relationship to the kids and whether they'll face charges were not immediately disclosed.
According to the Texas Department of Public Safety bulletin, they were last seen just after noon on Wednesday about 25 miles southwest of Dallas.