Graveside services for Michael Tonnberg, 80, of Greenfield, will be held at the Iowa Veterans Cemetery near Van Meter, Iowa, in the spring of 2026.  Online condolences may be left to the family at www.lambfuneralhomes.com.  The Lamb Funeral Home in Greenfield is in charge of the professional arrangements.

Survivors:  He is survived by his sister, Mary Gerber; brother, Greg Leech; his three children, Chris Tonnberg, Scott Tonnberg and wife Lisa and Rebecca Swift and husband Stephen; ten grandchildren, Darren, Dakota, Ethan, Janesa, Ari, Rainna, Ivy, Laif, Melody & Tyrus; four great grandchildren, Keegan, Jaxxen, Elise, & Kota; other relatives and friends.