Jean Palmer, the great-granddaughter of Arbor Day founder J. Sterling Morton, inspected Living Legacy tree plantings in downtown Nebraska City on Thursday.
Palmer also visited Arbor Lodge State Park, where a new tack room is under development.
She was attended by Samuel Palmer, Morton's great-great-grandson.
Two trees are planted on eighth street near the old News-Press location. J. Sterling Morton came to Nebraska City in 1855 to edit the newspaper.
Rebecca Turner of Nebraska City Tourism and Commerce says over 45 trees have been planted in the Living Legacy program, which started at Arbor Day 2011.
Plaques are being ordered for the trees to recognize four Palmer-Morton great-great-grandchildren and Martha M. Lattner, Morton grandchild.
Palmer, who was born in Iowa, traveled to Nebraska from California. She is speaking at a Lincoln event to recognize Nebraskans who have served as the U.S. Secretary of Agriculture.