- Barnes, Charles J.
Barnes, Charles J. (Charles Joseph), 1837-1921 (Autor Personal)
- Barnes, Charles Joseph, 1837-1921
New national first reader, 1883: t.p. (Charles J. Barnes)
OCLC database, Feb. 20, 2012 (hdg.: Barnes, Charles J. (Charles Joseph), 1837-1921; usage: Charles J. Barnes) (hdg.: Barnes, Charles J. ; usages: Charles J. Barnes, Charles Joseph Barnes)
CDNC, website viewed August 29, 2016 (Charles J. Barnes of Chicago is one 60 greatest living American book collectors; from Daily Alta California, vol. 36 no.12394, 23 March 1884)
Find A Grave, website viewed August 29, 2016 (Charles J Barnes; born July 26, 1837 in Evansville, Vanderburgh County, Indiana; died July 1921 in Switzerland; Charles was a partner in the published house A.S. Barnes & Co and avid book collector who married Mary Ludington (daughter of Nelson, a wealthy lumber merchant) in 1868; in 1920 he traveled to Europe in failing healthy and died in Vevey Switzerland; Charles was the only child of Jeremiah Root Barnes and Catherine Platt)