(Engaged)ONDREJKA-LEWIS Mr. and Mrs. Rudolph On-drejka of Harvey are announcing the engagement of their daughter, Susan, to Michael Lewis, son of Mrs. Marjorie Lewis, also of Harvey.Miss Ondrejka, a 1968 graduate of Elizabeth Seton high school, is employed as an adjustment clerk with the Northern Trust company, Chicago.Mr. Lewis, a graduate of Thornridge high school and Thornton Community college, received a BS degree in accounting from the Walton School of Commerce, Chicago. He is employed as an accountant with the Verson Allsteel Press company, Chicago.The wedding date has been set for October 5, 1974.