"'If I have accomplished anything in my life,' she said late in her life, 'it is because I wasn’t embarrassed to talk about God.'"

     Dorothy Day, according to Jim Forest in

• "Dorothy Day," in The Encyclopedia of American Catholic history, ed. Michael Glazier and Thomas J. Shelley (Collegeville, MN: Liturgical Press, 1997), 414 (my thanks to Priscilla Pope-Levison for that reference), which reads, "'If I have achieved anything in my life,' she once remarked, 'it is because I have not been embarrassed to talk about God.'"
• "Dorothy Day — a saint for our age?," a presentation to the Dorothy Day Centenary Conference, Marquette University, October 10, 1997,
• "The trouble with Saint Dorothy," U.S. Catholic 62, no. (November 1, 1997):  18-23, and
• "Dorothy Day:  saint and troublemaker," Dorothy Day and the Catholic Worker Movement:  centenary essays (Milwaukee, WI:  Marquette University Press, 2001), 581 (576-587).

Forest, "a member of the New York Catholic Worker c[o]mmunity in the early 1960s" (611) who lived with Dorothy Day and knew her well, cites nothing.  I have not looked further.