Kent State University professor emeritus Foster Lindsey Brooks, 89, of Dollar Lake Drive, Twin Lakes, died Saturday at his home.Born Sept. 4, 1908 near Carrollton, he was the son of Thomas and Bronta (Herron) Brooks.After graduating from Mount Union College in 1929, Mr. Brooks received his doctorate from Ohio State University in 1934. He taught two years at Carrollton High School, from which he graduated from in 1925.Mr. Brooks then taught at KSU's department of mathematics from 1935 to 1973, when he became professor emeritus.In the 1940s, he taught for four summers at North Texas State University in Denton, Texas.During World War II, he was in the civilian service in submarine work, first in anti-U-boat activities in the Atlantic Ocean and later pro-submarine work in the Pacific Ocean.For this work, he received the Presidential Certificate of Merit.From 1949 to 1950, he worked with the Research and Development Board and the Office of the Secretary of Defense to help organize the Weapons Systems Evaluation Group.He was a member of the United Methodist Church of Kent since 1934, and sang in its choir since 1936. He also was a member of the Kent Kiwanis since 1940, and served in various professional groups.Survivors include 12 cousins.Memorial services will be held at 10 a.m. Monday at the United Methodist Church of Kent with the Rev. David Palmer and Rev. Kay Dunlap officiating. Private burial will be in Grandview Cemetery in Carrollton. Bissler and Sons Funeral Home in Kent is handling the arrangements.Memorial contributions may be made to Robinson Memorial Hospital Foundation _ Visiting Nurse and Hospice, P.O. Box 1204, Ravenna 44266-1204.