Dennis Dean Sachtleben, age 60 of Collinsville, IL, born November 24, 1956 in Portsmouth, VA passed away on Tuesday, July 18, 2017 at Anderson Hospital in Maryville, IL with family by his side.

Dennis was a 1974 Collinsville High School graduate. He was a Marine Corps veteran, and retired software engineer. He was a devoted member of Holy Cross Lutheran Church in Collinsville serving as a Sunday school teacher, chairman of the Wurstmarkt, and on many boards. He enjoyed boating, skiing, and his Farmall tractor.

He was preceded in death by his father: Dean Richard Sachtleben.

He is survived by his mother: Peggy Jean nee Kelley Sachtleben of Troy, IL; his wife: Mary Ann nee Clark Sachtleben of Collinsville, IL, whom he married on August 29, 1982; two sons: Eric (Dana) Sachtleben of St. Charles, MO and Matt (Joy) Sachtleben of Auburn, WA; two grandchildren: Chase and Colton; a brother: Todd (Cathy) Sachtleben of Collinsville, IL; a sister, Cheryl (Fred) Schunk of Collinsville, IL; nieces and nephews; and special friends: Brian, Linda, Rachel and Laura Warhover.

Visitation will be 4pm to 8pm on Thursday, July 20, 2017 at Holy Cross Lutheran Church, 304 South Street, Collinsville, IL.

Funeral service will be at 11am on Friday, July 21, 2017 at the church with Rev. Kyle Wright officiating. The service will conclude with military honors.

Memorials may be made to the Siteman Cancer Center (Brain Cancer Research) or Holy Cross Lutheran Church or school, and will be received at the visitation.