Charles Winninger was born on May 26, 1884, in Athens, Wisconsin. The postcard image above is in promotion of Three Smart Girls Grow Up (1939) - You can click it to enlarge if so desired.
Turner Classic Movies is running a marathon of movies featuring Winninger daytime Tuesday between 6:15 am and 5:00 pm Eastern time. The schedule:
6:15 am - God's Gift to Women (1931); 7:45 am - Night Nurse (1931); 9:00 am - The Go-Getter (1937); 10:45 am - Nothing Sacred (1937); 12:15 pm - Babes in Arms (1939); 2:00 pm - My Life With Caroline (1941); 3:30 pm - Belle of the Yukon (1944).
The Milwaukee Journal ran the most informative obituary of the Wisconsin-born actor after he died in 1969. That will open up in a new tab if you click HERE.
I also sought out 16-year-old Winninger on the 1900 census and found the 1912 registration of his first marriage, to actress Blanche Ring, as well as his 1918 World War draft registration. As of this writing links to the original documents (right side of page) are all free to view.