Louis Uedemann, an active player in Chicago around the turn of the 20th century, won the Western Chess Association championship (predecessor to the US Open) in 1900 and 1902. In the 1903 championship he lost the play-off coming third Max Judd (champion) and Sydney P Johnston. 1
Uedemann was born in Saerbeck, Germany and emmigrated to the United States at the age of 12.
"(he) was always cool, calm, methodical, somewhat slow in his movements, never excited about anything. His "German thoroughness" is seen in his chess library, where he classified and indexed thousands of newspaper clippings...For over 30 years Uedemann was one of the strongest players in the country..." 2
Uedemann was the chess editor for the Chicago Tribune and created a notation code for telegraphs for cable matches which was first used in the telegraphic match between London and St. Petersburg in November 1886
Wikipedia article: Louis Uedemann
1 "New York Clipper", 7th November 1903, p 874.
2 Harry F.Lee American Chess Bulletin p.28-29; quoted in "Emil Kemeny: A Life in Chess", John S. Hilber, p.291.