Hickey had worked as a pregame instructor for the White Sox since 2004. He also pitched for the White Sox from 1981-83.
Visitation for Hickey will take place from 3-9 p.m. CT on Monday at Damar-Kaminiski Funeral Home at 7861 S. 88th in Justice, Illinois. The funeral mass will take place at 10 a.m. on Tuesday, at Old St. Pat's Church on 700 W. Adams in Chicago.
"That's the reality of life, how hard it's been all year," said manager Robin Ventura of Hickey, who was found unresponsive in his Texas hotel room on April 5 and never regained consciousness. "It started our workout for Opening Day and it's tough.
"He's missed, he was a joy to be around. He was fun, a White Sox guy through and through. Those are things we deal with off the field. When you're playing, you're playing. Off the field, you think about him. His locker is there, his jersey is still hanging."
Hickey's jersey has been in the White Sox dugout on this road trip, standing for a man who was more than just a classy, fun-loving representative of the organization. He represented the whole geographic region associated with White Sox fans.
"Absolutely," Ventura said. "You give a definition of a South Side guy, his picture is there."