These are the minor characters in Kirsten's series
- 1 Amos Anderson
- 2 The Berg Brothers
- 3 Mr. Berkhoff
- 4 Brave Elk
- 5 Mr. Coogan
- 6 Ezra
- 7 Five Swans
- 8 Johanna Green
- 9 Mr. and Mrs. Green
- 10 Gustav
- 11 Miss Mobeck
- 12 Mormor
- 13 Nora
- 14 Old Jack
- 15 Erik Sandahl
- 16 Sigrid Sandahl
- 17 John Stewart
- 18 Mary Stewart
- 19 Mr. Stewart
- 20 Reverend Trulsson
- 21 Mr. and Mrs. Vanstrum
A black-haired nineteen-year old student at Powederkeg School. He has blue eyes and is as tall as Olav Larson. He is known for being rowdy and troublesome and once got into a fight that made Mr. Coogan punch him.
Miss Winston's sternness (and public embarrassment) is enough to shame him into behaving better during school.
The Berg Brothers
Two brothers that live near the Larsons. They're bachelors and are often referred to as 'Big Berg' and Little Berg', with Big Berg being an inch or so taller than his younger brother.
The owner of Berkhoff's General Store. He is a bald man with a mustache.
The father of Singing Bird and the chief of his tribe.
The previous teacher of Powderkeg School; Anna and Lisbeth say he was very strict teacher. Miss Winston replaces him as teacher and tells the students that Mr. Coogan was injured after being thrown from his horse.
A boy around Peter's age. He was traveling to California with his Ma and dog to reunite with his Pa before the their wagon fell over. He is one of the main characters of the short story Kirsten's Promise.
The ten year old daughter of Mr. and Mrs. Green. She is tall for her age and is described as having eyes that seemed older than a ten year old's should.
Mr. and Mrs. Green
The Larsons' neighbors. Their original surname was Sjögren.
Following the death of their eldest daughter, Mr. Green decided the should immigrate to America for a new start. Due to Mrs. Green's growing paranoia over strangers, and Mr. Green's lack of farming skills, they decided it would be best to return to Sweden.
They're only seen in The Runaway Friend.
A Swedish woman who visits Minnesota in The Runaway Friend. She visits the Larsons and asks them and their neighbors questions about life in America.
Kirsten's maternal grandmother and Greta Larson's mother. She is mentioned often, but not seen as she remained in Sweden.
She is mentioned in Kirsten's Surprise, when Mama and Kirsten reminisce how she helped pack their painted trunk.
A Norwegian girl who attends Powderkeg School with Kirsten. She is described as having a round face, creamy skin, blond hair she wears in a thick braid, and a dimple in one cheek. In Kirsten and the New Girl, she and her family are new to America. She's very good at math (numbers).
An elderly man who worked as a fur trapper and lived in a cave out in the wilderness. He utilizes old-fashioned traps rather than modern-style metal traps used by others.
During Changes for Kirsten Kirsten and Lars find Old Jack inside his cave while looking for shelter to pass the night; he has died, and his body is frozen. Lars speculates Old Jack's heart may have given out on him. Since he has no family, Lars suggests that they bury him in the spring after the ground thaws.
A friend of Kirsten's. He's a few years older than Lars Larson. He immigrated to America with his sister Sigrid from Sweden, and lives in a shanty near the Larsons.
Erik Sandahl's sister. She immigrated with Erik to America, where she met Tom Braxton and married him. Later on she left her husband and moved in with a friend, where Erik was able to find her.
A friend of Lars Larson and Mary Stewart's brother. He traps furs with Lars.
A friend of Kirsten, Anna and Lisbeth who attends Powderkeg School. Her family initially moved to Minnesota from Boston four years ago (so prior to Kirsten's arrival). She has curly brown hair and a "squinched-up" face like a sleeping puppy. She's worked on a quilt before so when Miss Winston is not there to guide them she helps.
The year before the events of Happy Birthday, Kirsten! (in 1854), her Aunt Sadie gave birth to twins; one twin died as well as her aunt. Her family took the baby to raise and while the family calls her Mary's little sister, she is a cousin and never knew her real mother.
John and Mary's father.
Mr. and Mrs. Vanstrum
The Larsons' neighbors. Mrs. Vanstrum keeps a blue rosette Mr. Vanstrum gave her when they were courting.