"We may not look alike, but it's a typical family," Farmer said.

"I hated to see him go, but we have stayed in touch," Farmer told AdoptUSKids. "From the beginning he called me 'Dad.' … He still does."

Since that first assignment, Barry has been a foster parent to several children. His then adopted his three sons. Darrell and Jeremiah came to his home as foster placements; he found Xavier on the AdoptUSKids website.

"I really thought I was done adopting after Xavier," Farmer said. "But then Jeremiah came along, and I thought, 'Well, this is meant to be.'"