Editing PotlatchDeltic (section)

=== Sustainable Forest Management ===
John Philip (Phil) Weyerhaeuser, Jr., nephew of Charles A. Weyerhaeuser, became president of PFI in 1931. Previously, as general manager of Clearwater Timber, he began the first program of [[sustainable forest management]] for timber as a crop in the [[United States]]. PFI continued this program and Phil Weyerhaeuser implemented it on a larger scale when he joined the family [[Weyerhaeuser|Weyerhaeuser Timber Company]] in 1933.<ref>{{cite web|url=https://www.worldforestry.org/wp-content/uploads/2018/03/WEYERHAEUSER-JOHN-P.-JR.pdf|title=John Philip (J.P.) Weyerhaeuser, Jr.|publisher=World Forestry|access-date=March 10, 2023}}</ref>

After Phil Weyerhaeuser's departure, C.L. Billings took over as PFI's general manager. During his tenure, which lasted until 1949, PFI continued to develop and practice sustained yield forest management in the [[Inland Northwest]]. PFI began paying out dividends in&nbsp;1940.<ref>{{cite web|url=https://digitalatlas.cose.isu.edu/geog/forestry/lmbermn.htm|title=Lumbermen In Idaho|publisher=Idaho State University|access-date=March 9, 2023}}</ref>