How does the family raise the money for the monthly interest, in Chapter 6?

In order to get the money the family needs for the interest payment, Ona gets a job sewing ham covers, and Stanislovas gets a job in a lard factory. In order for Stanislovas to get the job, Teta Elzbieta had taken him to the priest for a certificate saying he was two years older than he actually was.

Ona came home and reported that the forelady seemed to like her, and had said that, while she was not sure, she thought she might be able to put her at work sewing covers on hams, a job at which she would earn as much as eight or ten dollars a week.

Meantime Teta Elzbieta had taken Stanislovas to the priest and gotten a certificate to the effect that he was two years older than he was; and with it the little boy now sallied forth to make his fortune in the world.