- From Winchester, Kentucky.
- Theo (guitar) and Brenna (banjo) MacMillan are brother and sister, two of ten siblings in their family.
- They both attended Berea College (Kentucky) and played in the Berea College Bluegrass Band.
- 2016, moved to Nashville and began performing as a duo. Two years later, they formed their own band.
- 2019, released first album Where You Go (no label).
- 2022, released I Can Hear Kentucky Calling Me (Mountain Fever).
- 2024, Brenna released a solo project Dear Life (no label).