Courtney Doi is the granddaughter (often referred to as a "3G") of a Holocaust survivor. Her grandmother, Judith Klein, the youngest of six children, left Berlin, Germany on the Kindertransport in December 1938 just after Kristallnacht. Judith lived with a foster family in the English countryside to avoid heavy bombing in the city. Judith’s father, two aunts, and two of her siblings died in concentration camps. One of Judith's siblings survived internment at the Theresienstadt concentration camp/ghetto, also known as Terezin.

Courtney and "Grandma Judith" visited Berlin in 2001 and 2005 where they visited her family's houses and memorials dedicated to lost relatives and attended a Nazi reparations case. Judith passed away in 2016, and Courtney inherited 30 years of her personal journals and essays. These writings address both childhood experiences from the war and the contrasting feelings of guilt and luck many survivors encountered. Courtney enjoys incorporating short reflective writing assignments into her presentations using her grandmother's writings.