Abstract Josua Lindahl was a professor of natural science and mathematics at Augustana College and Theological Seminary in Rock Island, Illinois, from 1878 to 1888. Lindahl is remembered as the first full time science teacher at Augustana College and laid the foundation for his successor, John Udden, a later professor of geology. In 1888, Lindahl left Augustana for a position as state geologist and curator at the Illinois Natural History Museum, Springfield. He was an important member of the...

Abstract Johan August Udden was born in Sweden in 1859 and emigrated to America with his family at the age of 2. He attended St. Ansgar Academy in Minnesota from 1873-1876, and received his Bachelor of Science degree from Augustana College in 1881. He returned to Augustana College to natural science and geology in 1888. While at Augustana, Udden supervised the geology museum, which had been started by Josua Lindahl. Also, he was leader for the Weatherman's Club (1903) which was the forerunner of the...