Lisa, what a story. Out of tragedy, hope. Your sons are very fortunate to have such a one-of-a-kind mom.
I can't help noticing that you came to children's books in much the same way I did: children you loved needed a story you had in you. I found out after I wrote my stories that there's a word for this: bibliotherapy
It's great that you're putting the product of all that love out there for other children to benefit from. So the first thing I want to do is direct people again to your site: LSG Publications.
The second thing I want to do is direct people to a page on this site that shows - step by step - a way that any grown-up can write a story for a child they love. It's my How To Write A Children's Book page. It just so happens to be the most popular page on the site, as well as the longest and the one that demands the most out of the reader/writer.