D. Thomas Diedrich 82, of Sycamore died Friday, April 3, 2015 at Bethany Health Care and Rehab in DeKalb. He was born January 26, 1933 in Sublette, IL and was the son of William and Marie (Lawler) Diedrich.

Thomas graduated from DeKalb High School class of 1950 and continued his education at Benedictine College and Northern Illinois University. He married Mary Lou Moberg on October 27, 1956 at St. Mary Catholic Church in DeKalb, she preceded him in death on May 20, 2009. Tom was a Certified Public Accountant for many years. Tom and his late wife Mary Lou has lived in San Francisco, CA from 1956-1962, then moving to Rockford, IL from 1962-1983, then in Jakarta, Indonesia from 1984-1989 then to Arlington, VA from 1989-1996 and finally settling in Sycamore in 1996 until his time of death. He was a member of St. Mary Catholic Church in DeKalb, Knights of Columbus and a Past Exalted Ruler for the Elks Lodge #64 in Rockford.

Survivors include one son; Joseph (Jean) Diedrich of Plover, WI, a brother Joseph (Theresa) Diedrich of Hinckley, IL, two sisters; Lucille Riordan of Lisle, IL and Patricia Lynch of Westchester, IL and three grandchildren; Jameson, Jeanna, and Joseph Diedrich. He was preceded in death by his parents, and wife Mary Lou, 3 daughters; Katherine Ann, Mary Ann and Mary Grace. 2 Sons; Francis Thomas and John Patrick.