AA 1926 then UA 5609 at O'Hare
St Louis → Chicago → Appleton
Timetable, Chicago time
09:00AA 1926 from St Louis at the gate
22:00UA 5609 to Appleton leaves the gate
13 h apart on the timetable
UA 5609 leaves 13 h after AA 1926 arrives on the timetable: more than half a day, so not a connection we count.