Astoria author Peter Marsh will speak about his book on Liberty ships 2 p.m. May 4 in the Netul River Room of the Visitor Center at Lewis and Clark National Historical Park in Warrenton. Admission is free.

“Liberty Factory — The Untold Story of Henry Kaiser’s Oregon Shipyards” will speak about the World War II-era Kaiser shipyards on the Columbia and Willamette rivers. 2025 is the 80th anniversary of VE Day (Victory in Europe, May 8, 1945). Autographed books and historical cards will be available.

Marsh, who was born in London, writes about subjects of maritime interest from fishing to commercial shipping. In 1996, he inherited a substantial archive of papers and photographs from Larry Barber, retired marine editor of The Oregonian. A visit to the D-Day beaches in Normandy led him to look more closely at Barber’s wartime material.