The State Historic Preservation Office is holding a webinar series entitled "Shut the Door! Barns in Oklahoma" featuring presenters who specialize in barn history, construction, and restoration. On Tuesday, February 22, the topic will be "Log Barns in Oklahoma." These presentations will be held on the last Tuesday of every other month, beginning at 6 p.m. The webinars will be limited to the first 100 registrants. April 26 - "Three-Bay and Crib Barns in Oklahoma" June 28 - "Use of…