For two self-identified “Exmormons,” our conservation nevertheless begins in a way that feels entrenched in Mormonism. “We might be cousins,” says Alyssa Grenfell, author of How to Leave the Mormon Church. We both descend from the same Mormon polygamist stock. 170 years after our Mormon pioneer family arrived in the Salt Lake Valley, Grenfell disavowed the faith of her forebears. In her book, she contemplates if those ancestors would be disappointed in her or respect her conviction for leaving the Mormon church.