Deland McCullough's Story
ESPN, Tiny Fox Lab

Deland McCullough, a former NFL player, and current RB coach for the Chiefs, was given up for adoption at birth in 1973. He found his birth mother in 2017. She told him the name of his father, who turned out to be his college coach and mentor throughout his adult life.Tiny Fox Lab Facts

Preview photo credit: ESPN
Source: https://www.espn.com/espn/feature/story/_/id/24505521/the-jaw-dropping-story-nfl-coach-search-family