Dear Ms. Erickson,
Thank you for posting your request on History Hub!
Voter stickers are procured and distributed by state and/or local election officials and vary by locality. The National Archives does not have records concerning these stickers. We suggest that you contact the Library/Archives Division of the Nebraska State Historical Society for information about this topic. The local historical society or public library for the specific community where she lived also may have information pertaining to election memorabilia.
We hope this is helpful. Best of luck with your research!