How were the children eventually able to get out of Welch?

Lori moves to New York to become an artist after meeting two filmmakers who visit Welch as part of an enrichment program. Short on money, she first takes a babysitting job in Iowa.

Jeannette takes a bus to New York City to meet her sister.

Lori and Jeannette pitch in and move Brian to New York to be with them.

Maureen, too young, is left behind.