カンザス州選出のアメリカ合衆国上院議員
.... Kansas: Standard Publishing Company. p. 757. https://books.google.com/books?id=o8X5krq3fP8C&pg=PA757
↑ “Peffer's Successor Chosen.”. The New York Times. (1897年1月28日). p. 1. http://nyti.ms/2elU7rY
↑ “J.R. Burton the Choice in Kansas”. The New York Times. (1901年1月23日). p. 5. http://nyti.ms/2f3lLzx
↑ Proceedings of the House of Representatives of the State of Kansas. Thirteenth Biennial Session, Topka, January 13 to March 13, 1903. Topeka, Kansas. (1903). p. 303-306. https://books.google.com/books?id=cbolAQAAIAAJ