Louis C. C. Krieger

[2] At the age of 18, Krieger started employment as an artist assistant in the Division of Microscopy at the Department of Agriculture, and spent time painting mushrooms found around the District of Columbia area.

[3] When the Secretary of Agriculture, Julius Sterling Morton, closed the department in 1895, Krieger spent a year in Munich at the Royal Bavarian Academy of Fine Arts.

[2] In 1902, Krieger started working as a botanical illustrator for mycologist William Gilson Farlow at Harvard University, a position that lasted for the next decade.

[2] In 1912, Krieger accepted a position at the United States Department of Agriculture, at the Plant Introduction Garden in Chico, California.

[2] Over the following 10 years, Krieger published several scientific articles that appeared in Mycologia and other journals, including the May 1920 National Geographic, which featured 16 of his colored plates.