Philip L. Koltun

CRYSTAL LAKE – Philip L. Koltun, 61, of Crystal Lake, passed away Friday, Oct. 26, 2012, at Northwestern Memorial Hospital in Chicago from acute myeloid leukemia.
He was born May 6, 1951, the second son of Abraham and Rhoda (Rosenzweig) Koltun. An excellent student, Phil graduated from high school at age 16 and began his undergraduate studies in computer science at the University of Illinois in Champaign-Urbana. He went on to obtain a master's degree in computer science from Carnegie-Melon University in Pittsburgh and a Ph.D. in computer science from the University of North Carolina in Chapel Hill. His academic career included teaching computer science at North Carolina State University and Sangamon State (now UI-Springfield).
Phil left academia for industry in 1983 and worked for Harris Corporation in its software operations division and eventually in engineering productivity at the corporate headquarters. He later held other software engineering positions at Motorola, Navteq and at the Linux Foundation. Most recently, he joined Pearson Corporation.
Phil met his future spouse, Patricia Melcher, while working at Harris. They married Nov. 4, 1989, in Indiatlantic, Fla. They had two sons, Alex and Andrew. Phil was first and foremost a very loving and giving family man dedicated to his sons and wife. He took great joy in nurturing and encouraging their passions, academic and occupational interests. Phil was also a tremendous fan of college sports. The UNC Tar Heels and Fighting Illini teams always held a special place in his heart.
He is survived by his wife, Pat; and his sons, Alex and Andrew, all of Crystal Lake; his mother, Rhoda Koltun in Mid-Manhattan, N.Y.; his brother and sisters-in-law, Jan Koltun of Springfield, George (Kathy) Melcher of Genoa City, Wis., Greg (Ceci) Melcher of Grafton, Wis., Nancy Melcher of Brookfield, Wis., Gary (Mina) Melcher of Gaithersburg, Md., Annette Melcher of Milwaukee, Claire (Donald) Mueller of Belleville and Debbie Melcher of Franklin, Wis.; and also many nieces and nephews.
Phil was preceded in death by his father; brother, Dave; brother-in-law, Bob Melcher; as well as his mother and father-in-law, Leona and Walter Melcher.
A memorial gathering will be from 3 to 5 p.m. Saturday, May 25, with a 3:30 p.m. service of remembrance at the DeFiore-Jorgensen Funeral & Cremation Service, 10763 Dundee Road, Huntley.
For information, call 847-515-8772. Online condolences can be directed to

Funeral Home

DeFiore-Jorgensen Funeral & Cremation Service
10763 Dundee Road Huntley, IL 60142
(847) 515-8772
Published in the Northwest Herald on May 22, 2013