()ndrejka-WoestmanMr. and Mrs. Rudolph J. On-drejka of Harvey announce the engagement of their daughter, Susan, to John E. Woestman, son of Mr. and Mrs. Edmund A. Woestman of LaCrosse, Wis.Miss Ondrejka is employed as a research technician at the Northern Trust compnay, Chicago. Her fiance is an employee of Interlake Steel corporation in Riverdale.