Clinton Russell Armstrong, 74, passed away peacefully Monday, October 10, 2011, in the presence of his family and pets.

He was born April 21, 1937, in Philadelphia, Pa., the second of five children born to Dorothy L. and Russell D. Armstrong. His early years were spent in Lawnside, N.J., after which he attended the University of Illinois, earning degrees in both botany and biology.

After graduation, he joined the Army and served in various locations in the U.S., the last of which was Fairbanks, Alaska, where he worked as a lab technician.

While in Alaska, he met and married Arlene Hicks, (deceased). Together they had a son, Clinton R. Armstrong II, and he became a father to stepson, Tyrece (deceased). He later worked for Stauffer Chemical in Richmond, Calif.; Southern Oregon University in Ashland, Ore.; and the Forest Service Nursery in Dorena, Ore., during which time he was nationally recognized for his contributions to reforestation research, and from which he retired.

Clinton enjoyed fishing, organic farming, animal husbandry, painting, dancing, barbecuing, reading, coaching his son in track and field, and sharing both his insights and his sense of humor with others. He was an early advocate for civil rights, and remained dedicated to social justice, political activism and peace.

He was preceded in death by both parents; and his eldest sister, Shirley Brooks. He is survived by his son, Clinton R. Armstrong II; his daughter-in-law, Lisa; his grandson, Mitchell Armstrong, of Onalaska, Wis; his sisters, Carol Scott, of Philadelphia, Pa., and Gail Armstrong, of Portland, Ore.; his brother, Orson Armstrong, of Middleton, Calif.; and ex-wife, Candyce Armstrong, of Grants Pass, Ore.

Online condolences can be made at www.couleecremation.com. In lieu of flowers, please plant a tree or make a donation to your local Hospice chapter.