John G. Mathias, 82, of Arlington Heights, passed away on August 6, 2022. Beloved husband of Theodora "Teddy" Mathias; loving father of Mary (Bill) Bauer, George Mathias, Thomas (Kathy) Mathias and the late Constance "Connie" Mathias; adoring "Papou" of Alexis & Bradley Bauer and John (Bianca) & Lauren Mathias; dear brother of Elaine Mathias and brother-in-law of the late Despina (Andy) Kyriazes and the late Steve (Linda) Messerges; dear uncle of many nieces and nephews. John was the proud owner of Franklin Weber Pontiac. He was on the parish council and was Past President at St. Nectarios Greek Orthodox Church, on the parish council at St. George Greek Orthodox Church, on the Archdiocesan Council, on the council and Chairman of the UHAC, a Trustee of the Palatine Township, Past President and Chairman of the Chicago Auto Trade Association, Founder and Past President of the Schaumburg Rotary Club, Founder and first President of the Schaumburg Chamber of Commerce, Trustee of the Alexian Brothers Hospital of Elk Grove, a member of the Order of Ahepa, a member of Hellenic Lodge #1084 and he received the St. Paul Medal from the Archbishop. Visitation Tuesday, August 9, 2022 from 4:00 pm to 8:00 pm at Smith-Corcoran Funeral Home, 185 E Northwest Hwy, Palatine. Visitation Wednesday, August 10 at St. Nectarios Greek Orthodox Church, 133 S Roselle Rd, Palatine, from 9:30 am until time of funeral service at 10:30 am. Interment at Elmwood Cemetery, River Grove, Ill. In lieu of flowers, please make donations in John's name to the Illinois Alzheimer's Association at www.alz.org/illinois or St. Nectarios Greek Orthodox Church at www.stnectariosgoc.org/stewardship/donations, under the "give now" button please select "Memorial Donations" and write John's name in the note. Info: (847) 359-8020