Frank and Hilma (Johnson) Berg
Frank Berg
Her Illinois birth certificate lists her name as "Olga Victoria Berg". Olga, her mother and brother were all killed in the Iroquois Theatre Fire.
Olga's body had been found on the stairs in the Iroquois lobby and carried out of the theater by patrolman Albert Simsrott.
McCurdy, D. B. (1904). Lest We Forget: Chicago's Awful Theater Horror. Chicago: Memorial Publishing Company, accessed https://www.gutenberg.org/files/39280/39280-h/39280-h.htm, p 328
Chicago Tribune (Chicago, Illinois) · 24 Jan 1904, Sun Page 3
Find A Grave https://www.findagrave.com/memorial/135176911/olga-frances-berg