Amber Gonzales normally works at Wal-Mart in Pahrump, Nevada.

But on this day, she’s standing by the table stacked with cheesecake slices swaddled in plastic wrap on plates, encouraging everyone to take one so they don’t miss out.

She’s wearing her coat as she wipes down tables in this tent of fire crews, and she’s handing out napkins and Halloween candy to anyone who will take a piece.

Gonzales, remembers how she wanted to have a big family, with six boys, and how she wrote that in her hig...