Neighbor John Tricoli said, "As a whole, very family oriented. Many times they would go on outings, all four of them together."
Neighbors say Roland Sedlmeier grew up in Germany and was planning on soon becoming as American citizen.
Alan McMahon said, "He was really excited about it and mentioned it about a month ago and was waiting on word back from the German government as to keeping his dual citizenship."
Sedlmeier flew across the country working pipeline surveillance. His wife Melinda cared for 6-year-old Harley and 4-year-old Sofie.
The four were killed on Highway 105 in Conroe Sunday, two teens in a Jeep were also injured. Conroe Police say 68-year-old Ronald Cooper caused the three-vehicle crash.
Cooper was in a Hyundai and suffered minor injuries. He was taken into police custody and is now facing four counts of intoxication manslaughter and two counts of intoxication assault. Police say they don't believe alcohol was a factor but are waiting for blood tests to learn what may have impaired him. His bond is set at $460,000.