COLUMBUS, Ohio — Dominican Sister of Peace Tomasa Sigala, OP, 83, died at Mohun Health Care Center, Columbus, Ohio on July 25, 2015. Many people of this area knew Sister Tomasa when she lived and ministered here in Great Bend.Born Dec. 10, 1931, in Rocky Ford, Colo., Sr. Tomasa was the daughter of Ramon and Ysidra Gonzales Sigala. She entered the Dominican Sisters’ Community in Great Bend Aug. 30, 1956, and pronounced her first vows June 13, 1959.