Family Relationships

Reference Himmeta, Västmanland Household Records AI:I (1671 - 1696) IM. 59 PG. 57, IM. 29 PG. 27, & IM. 22 PG. 20. On PG. 57, the household of Eric (unable to read on PG. 20) Hansson at Väg consists of his wife, Karin (Karin Ersdotter on PG. 20), sons, Lars and Eric, and daughters, Anna and Karin. What are the relationships of Brita, Kerstin and Kerstin's daughter, Marit, to the Hansson household? Based on a review of the records on PGs. 27 and 20, it appears that Brita's surname is Ersdotter. However the abbreviation preceding her name looks to mean "sister". Are Karin Ersdotter and Brita siblings? Also, the abbreviation preceding Kerstin's name looks to mean "married or wife". Is she Eric's daughter, Kerstin, mentioned on PG. 20?Also, on PG. 27, it appears that Eric's wife is named Anna Persdotter.Can you help me determine the relatioships of the various people to Eric?

Thank you, Fred