Lyddie's 10-year-old brother who initially helps on the family farm and later finds a new life with a mill job, ensuring his own stability and education.

The second oldest sister who begins working in a factory at a very young age, highlighting the harsh realities of child labor during the period.

An experienced and kind weaver at the Concord Corporation, who becomes a friend and mentor to Lyddie and is involved in the labor reform movement.

One of Lyddie's roommates with a love for reading, who dreams of attending Oberlin College and inspires Lyddie with her aspirations despite personal hardships.

An Irish émigré assigned to work with Lyddie, who learns to become a skilled weaver and demonstrates loyalty and resolve.

A Quaker neighbor and potential romantic interest for Lyddie, admired for his kind nature and commitment to abolitionist efforts, reflecting his family's values.