Carrie Saxifrage, who wrote the second book in question — The Big Swim: Coming Ashore in a World Adrift — also changed her name in adulthood, but for pretentious, First World white lady reasons:
“She and her husband named themselves after a white flower that grows on mountaintops, and, as she recounts, ‘Our families didn’t know what to make of our earnest explanations of how we were claiming relationship to those pure, high places[.]'”
I pray that being “high” had something to do with this couple’s rejected-Portlandia-script name-change. The notion of anyone undertaking such an endeavor stone cold sober chills the blood.