Concert program in Dutch Myra Mortimer and Coenraad V. Bos

 Marian Anderson Papers (University of Pennsylvania) Mortimer, Myra; Bos, Coenraad V.

Myra's handwriting on front, Colenda Digital Repository Penn Library  here

 

Berengaria 1928 Myra and the novel, The Crossing by Len Niessen

 Myra is mentioned a couple of times in a mystery story about the trip of the Cunard Line ship, The Berengaria in 1928 from New York to Southampton,  England 

Read here