found: Joplin, S. Treemonisha. [SR] p1976.
found: Int. ww in mus., 15th ed.(Balthrop, Carmen Arlen; b. May 14, 1948, Washington, DC; soprano)
found: Information from 678 converted Dec. 15, 2014(soprano)
found: Washington post WWW site, viewed Sept. 16, 2021(in obituary dated "yesterday": Carmen Balthrop; Ms. Balthrop died died Sept. 5 at her home in Mitchellville, Md. She was 73. Carmen Arlene Balthrop was born in Washington on May 14, 1948)
found: Oxford music online, viewed Sept. 16, 2021(Balthrop, Carmen Arlen (b Washington, DC , May 14, 1948). Balthrop studied at the University of Maryland, College Park (where she serves as Professor of Voice) and at the Catholic University of America)
found: Legacy.com, via WWW, viewed Sept. 16, 2021(Carmen Arlene Balthrop-Delaney; passed away Sept. 5, 2021; wife to Patrick Delaney)