The collection includes newspaper clippings, articles, correspondence, photographs and taped interviews of the Adrians and others living on Muir family historic sites by Dr. Ronald H. Limbaugh, Dir., John Muir Center, University of the Pacific, Stockton, Calif.

Sylvester "Syl" Adrian of Montello, Wisconsin was an inventor, resort and tavern owner, museum owner, conservationist and local historian. He was instrumental in the creation of the John Muir Memorial County Park on the first Wisconsin homesite of John Muir. The site was located at Fountain Lake farm, near Montello on County road F South in Marquette County, Wisconsin. Syl Adrian was an inventor like Muir, inventing with his brother a player piano, the coin slot for vending machines, the Adrianola juke box, an x-ray shoe fitter made until 1926, and an electric starter motor. As the operator of Adrian's Indian Echoes Resort and museum, he displayed a large Winnebago Indian artifact collection, World War I memorabilia, and information on Muir.

Collection is open for research.