When Cumberland Lumber got its start in 1944, there was a Spivey at the helm.Now 73 years later, Buzz Spivey continues to run the company as president and he’s been joined by his son, Justin, to make Cumberland Lumber a fourth-generation business.“In the scope of the way business is today, it’s rare to make the jump from one generation to the next,” said Buzz. “It’s especially rare when you get to the third and fourth generation. We’ll have to see about the fifth.”Cumberland Lumber was founded in 1944 when Herman Spivey started the company with L.C. Gilley and two other partners.