Mark Stephen Baker, recently of Marana, Arizona, formerly of Thousand Oaks, California and his hometown Chicago, Illinois passed away on April 3, 2019 at the age of 68 in Oro Valley, Arizona. He was born October 3, 1950 to the late Jeanette M. and Harold G. Baker.\n\nBeloved husband to Linda Melton-Baker for 33 wonderful years; cherished stepfather to Jason Love (Patti Hutchings) and Shannon Galvin-Myren (Patrick Fuentes), dear brother to Jake F. Baker, Thomas A. (Michele) Baker, and Janice (James) Kelsch, loving grandfather to Kaitlynn Myren and Hayden Myren, Isabella Fuentes and Gabriel Fuentes, best uncle to Alexis Kelsch and James F. Kelsch, along with numerous other nieces and nephews, and a good friend to many across the country. \n\nMark was a graduate of Lewis University, and was successful both in business and in life. To know Mark was to know his quick wit, whimsical sarcasm and charming laughter. Mark was a true treasure of a human being that will be greatly missed by all who knew him. \n\nA celebration of Mark's life will be held at a later date.