Milne grew up in South Jordan, Utah and attended Bingham High School, where he played basketball and football.

As a senior Milne was named second-team 6A All-State by the Salt Lake Tribune after catching 23 passes for 408 yards and eight touchdowns.

[1] Milne opted to play college football at BYU as a preferred walk-on over scholarship offers from Southern Utah and Weber State.

[2] Milne played in 10 games with three starts in his freshman season and finished the year with 69 yards and one touchdown on 10 receptions.

[22] Milne has been friends with Denver Broncos quarterback and former BYU Cougars teammate Zach Wilson since childhood.