Joan Myrtle Cook, 81, passed away Sunday, Oct. 30, 2016 at Possum Kingdom Lake. Funeral services will be held Thursday, Nov. 3, at 11 a.m. at Morrison Funeral Home Chapel. Burial will follow at Veal Creek Cemetery in Stephens County under the direction of Morrison Funeral Home. Joan was born Feb. 1, 1935 in Gorman to the late Willie Clifton and Martha Rena (Gann) Thomas. She married Leo Harlin Cook July 3, 1957 in Rotan. Joan moved to Possum Kingdom Lake in 1979 from Bridge City and worked for H&R Block. She was a member of Westside Ladies Club and MENSA. Survivors include her husband, Leo Cook of Possum Kingdom Lake; daughter, Letha Stone of Possum Kingdom Lake; sons, Dwaine Cook, and Bert Cook and wife, Mary, all of Possum Kingdom Lake; sister, Tommie Underwood of Wylie; brother, Bob Thomas of Celeste; six grandchildren and seven great-grandchildren.  She was preceded in death by her sisters, Jerry Houghton and Francis Hariman. Visitation will be Thursday from 9 to 11 a.m. at the funeral home.