Marcia M. Koslo, age 67, late of Dolton. Devoted daughter of the late Helen (late Joseph) Chocholak nee Szumilas and Stanley Koslo. Loving sister of Theresa (Carl) Gustafson and the late Barbara Koslo. Proud aunt of Jennifer, Dylan, Kandra, Megan and the late Antoinette and great-aunt of Conrad. Marcia worked for the Midwest Stock Exchange and retired from the Markham Courthouse as a Clerk of the Cook County Court. Visitation Friday from 2:00 to 9:00 p.m. Funeral Service Saturday, 10:00 a.m. at THORNRIDGE FUNERAL HOME (Janusz Family Funeral Service), 14318 S. LaGrange Rd. (Northbound traffic: U-turn permitted at 143rd St.) Orland Park. Interment Holy Cross Cemetery.