Prior to Stanford
- A 2020 graduate of Loyola High School in Los Angeles
- Competed for MAC Junior Rowing
- Earned the club's MVP in 2018 and most inspirational award in 2017
- Was cut from Loyola freshman water polo team, but the coach was a champion rower and encouraged Henry to try the sport
Personal
- Parents are Sean and Rosanna McCollough
- Has two brothers, Andrew and Ben
- Has a goal of becoming a thoracic surgeon
- Tutored in English as part of the Ignatian Scholars program