My grandparents immigrated to So Omaha in early 1900s. I did not know them. They were married at St Francis of Assisi on or ablout 6/18/1913.
The South Omaha Sun starts in 1951 and ends in 1983. Your grandparents marriage in 1913 would not be covered. You may want to try the Omaha Bee online at the Library of Congress website
OPL has marriage licenses on microfilm. We charge $5.00 per indexed obit. Please contact me at firstname.lastname@example.org if you wish to pursue this option.