As a couple was driving their trailer through dry northern California, they felt a tire blow and heard the scrape of metal against pavement. The sparks ignited the deadly 2018 Carr Fire—a wildfire that burned nearly 230,000 acres, destroyed more than 1,000 homes, and resulted in the deaths of several people.

            When survivors heard how the couple were overcome with grief, they formed a Facebook page to show “grace and extend kindness . . . for the shame and despair” enveloping them. One woman wrote: “As someone that lost their home to this fire—I need you to know my family…