Chester Palusiak - who suffers from dementia was last seen on February 13 at 165th and Wentworth in Calumet City.
Friends and family call Palusiak a beloved member of the community who spent many years driving kids to church on Sundays.
"He just has such kindness, passion and unwavering commitment to others and it's left a lasting impact on many lives and we are just determined to find him and bring him home," family friend Geneva Cummins said.
Organized search efforts are underway.