Republican nominee, Platte County Clerk

Mary Calvillo, a Republican, is on the Nov. 3, 2026 ballot for Platte County Clerk against Democrat Hans Peter¹. The Platte County Landmark reports she has more than 45 years of office management experience and says her priorities are modernizing the clerk's records and website, faster senior tax credit processing and office hours until 5 p.m.²³.

• More than 45 years in office management, executive assistance, supervision and customer service, per the Platte County Landmark³
• Degree in personnel management and international marketing from Missouri State University; 15 years in the travel industry as a flight attendant and hotel front desk supervisor³
• Member of the Platte County Republican Central Committee³
• Ran in the Aug. 4, 2026 Republican primary for County Clerk against incumbent Jera Pruitt and Russell Wojtkiewicz³. The November ballot lists her as the Republican nominee¹. The incumbent clerk, Jera Pruitt⁴, is not on the November ballot¹.