 In the cemetery's southwest corner, Tulsa Mayor G.T. Bynum encouraging anyone who thinks they may have direct or collateral ancestors in Oak Lawn's Black Potters Field during the 1920s to come forward. Ben Morgan, 1023 KRMG, Tulsa's News and Talk. 746, we're in the 60s right now, up around 85 this afternoon. By tomorrow, up close to 90 again, start to warm back up. Right now, it is cloudy and 67 at Tulsa's Severe Weather Station.