What would become of donny and ben after having their mother isabel in prison?

I am wirting a romantic novel. The plot is "Isabel moves to new york after having her precious husband's Mathew goodman murder by some robbers in coon rapids, Minnesota. She moves to NY along her two boys george and benjamin. She is basically a poor woman and a washerwoman but in new york, she finds a job in 5 star restaurant. Dave, a wealthy man, set up a private insurance practice and after a lot of hard work, he gets his business going smoothly. He has a business partner James Carter who is also a good friend. Mr Dave Block meets Isabel in that restaurant and after a few days, he asks her out. She goes out with him for lunch while her boys in daycare. After a long, they get married after a strong disapproval from critics. Isabel gives birth to a boy named Donny Block. They hire a nanny Alarice Berquist,26. After two months, George falls off from treehouse and gets serious injuries on head. Doctors keep him in ICU. Its raining and its night. Dave tells isabel that he's going to drive home and pick up the medical insurance cards. He goes home. There he finds Alarice who comes downstairs aftering tugging in ben and donny. She tries to seduce dave. Dave is so stupid that he finds himself caught in her net. They sleep together that night. While Isabel falls asleep on a bench in hospital waiting for doctors some to say. George passes away in the morning. After a long time, isabel finds dave and alarice screwing on floor. It so pisses off isabel that she divorce dave and the next very day, isabel kills alarice with a knife at alarice's apartment. She lets the law take its courses and confess what she did. She finds herself serving life in prison." What confuses me is what becomes of her boys Ben and Donny? I have thought about it but cant figure or get an idea about what to write of her children to explain what becomes of them. Do you have any idea what would become of donny and ben? Thanks