Leonard N. Nysted, 92, passed away as he lived, peacefully and quietly, in his home in Eagle River, Wis. His daughter, Lynn­Ann Thomas and son-in- law, David Thomas, of Sugar Camp, Wis., were with him.  His son, Lee A. Nysted of Lake Bluff, Ill., had been there for a visit days before.

Len was born in Marshfield, Wis., in 1927, and grew up in Loyal, Wis.

He flew planes in the Army Air Corps before attending St. Olaf College where he attained his Bachelor of Science degree in chemistry.

Len was a world-renowned chemist from the ’50s through the ’80s. He contributed so much to the world in the way of naturally derived medications. His work with G.D. Searle brought the first oral contraceptives.

He worked with the Native Americans of Central America to derive the compounds that were discovered to be treatment for rheumatoid arthritis and anovulation (birth control). One of three reagents known currently bears his name, Nysted Reagent.

He was a lifetime lover of the Wisconsin Northwoods.  He and his wife, Anita (who passed away two years ago), LynnAnn and Lee were summertime residents starting in 1958 to the present.

Len’s beloved A-frame on Lake Laura near Star Lake was his pride and joy.

Len and Anita moved permanently to Eagle River five years ago.

He is survived by his two children; five grandchildren, Lyle B. Williams III of Belgrade, Mont., Leonard Bradley Williams of Seattle, Wash., Krystel Nysted of Olympia, Wash., Melissa Nysted of Denver, Colo., Jessica Nysted of Lake Bluff; and great-grandchildren, Simon Nysted of Olympia and Dean Leonard Williams of Belgrade.

He also is survived by his two youngest sisters, Mary and Jeanne of Birchwood, Wis.

There are no plans for any service currently.

Arrangements by Gaffney-Busha Funeral Home, Eagle River. Online condolences may be expressed at gaffney-busha.com.