The Hannibal Tree Board and Hannibal Parks & Recreation are celebrating Arbor Day April 30 by planting a tree in Nipper Park at the Hannibal riverfront.

About 82 fourth graders from area schools, Holy Family, Stowell, St. John’s and Eugene Field, will help plant a swamp white oak tree at 1:30 p.m. at the riverfront.

Tree Board members Paul Miller, Kristy Trevathan, Stephan Franke, Harry Graves and Maxx Vance will participate. The city of Hannibal was named a Tree City USA for the 22nd year.

Information about the swamp white oak tree follows: