Lee R. Tilman was known for working on the Boulder (Hoover) Dam construction. He was born in Gooding, Idaho and had worked many jobs including a miner, ranch hand, and truck driver. He has given interviews regarding the dam's construction for many programs including PBS (Public Broadcasting Service), the History Channel, and the Discovery Channel.

Source:

"Lee Tilman." Las Vegas Review-Journal. Accessed January 30, 2020. https://obits.reviewjournal.com/obituaries/lvrj/obituary.aspx?n=lee-tilman&pid=142144316