Here’s a cool find! The William F. Stone & Sons Company in Oakland, California built the YMS-299. Someone from the Stone family has written up a story about the shipyard with a pile of photos, including one of the YMS-299 in 1942, before she went off into battle.
From the presentation:
Wooden Boat Building in San Francisco Bay: One Family’s Story
A memoir of the Stone family: William Isaac Stone, William Frank Stone, Lester Frank Stone
Presentation to the Alameda County Historical Society at the Encinal Yacht Club,
Alameda, California, January 26, 2012by Roberta O’Grady, granddaughter of W.F. Stone and Niece of Lester F. Stone