Wyman was born May 16, 1931 on the family farm near Kingsley, Iowa to Lloyd and Mabel Warren Griffith. He excelled academically and in numerous track and field events at Kingsley High School, graduating as valedictorian in 1949.  

Wyman married Emma Lou Coffey on October 18, 1956 in Lincoln, Missouri where they lived most of their 40 years together.  Three children were born to their union, Twyla, Dana, and Delmar. 

Wyman’s main life‘s work was as a pipe-layer, working as a union laborer for 30 years. He was a published songwriter, an accomplished poet, and a life-long learner, especially enjoying scientific discovery.

Wyman was preceded in death by his wife, Emma Lou, a daughter-in-law, Joyce Griffith, a brother, Warren “Pete” Griffith, and his parents.  He is survived by two sisters, Gwen Bierman of Kingsley, Iowa and Colleen (Lloyd) Keck of Washta, Iowa, and one brother, Bob Griffith of Kingsley, Iowa, his children, Twyla (Kent) Rader of Cincinnati, Ohio, Dana and Georgia Griffith of Sedalia, Missouri, and Delmar Griffith of Smithton, Missouri, 7 grandchildren, Keith, Maggie, Jon, Jeremy, Michelle, Darin, and Lisa, 10 great-grandchildren, and 3 great-great grandchildren, and numerous nieces and nephews.