David Cellan, 63, of Owasa, Iowa passed away on Monday, May 18, 2026, at UnityPoint Health-Allen Hospital in Waterloo. Visitation was held on Saturday, May 23, 10 a.m.-12 noon at Adams Celebration of Life, Owasa. Graveside service took place at Evergreen Cemetery in Clarion at 2 p.m. With honor, Adams Celebration of Life is serving the family.