Alderwoman Katherine Marks will not seek a 10th term in the city’s 8th District next year.

Her niece, Shavonda Marks, will not seek a second term on the County Board in the same district.

Katherine Marks filed her non-candidacy papers on Wednesday after serving the city’s 8th District since 1992. She and Everett Butler, who represented the city’s 10th District, were the first African-Americans to join Kenosha’s City Council, both elected in 1992.

Kenosha Mayor Keith Bosman said he was surprised to hear of Katherine Marks not seeking re-election.

“We go back a long way on the Common Council and worked on many projects over the years,” Bosman said. “She has certainly been a vocal leader both for the district and for the city for many years.”

Bosman said Katherine Marks helped bring positive changes to the 8th District.

“Over the years she has been in office, her district has been transformed and the whole area around it was greatly improved,” Bosman said.

“She was a very vocal advocate for the improvements that ultimately have been made in her district. From roads to parks to a new school being built to the redevelopment of the Brass site, there are many, many issues that she has advocated successfully for.”

The former site of the American Brass Co. was cleared several years ago and now houses a grocery store, bank, apartments and the Brass Community School. A new Kenosha Community Health Center was built off of 14th Avenue and 63rd Street and opened last year.

Katherine Marks has the second-longest tenure among the city’s aldermen. Steve Casey, who has the longest tenure with 22 years on the council, is the only incumbent alderman to not have filed candidacy or non-candidacy papers as of Thursday afternoon.

Adam Spivey and Angela Cunningham have already filed papers to run for alderman in the 8th District as of Thursday.

Supervisor Shavonda Marks also filed non-candidacy papers for the spring election, County Clerk Mary Schuch-Krebs said Thursday.

John Grulich Jr. has filed papers to run for the seat, according to the clerk’s office.

Marks, in her first term in office, serves on the board’s Administration Committee.

The 8th District is roughly bounded by 57th Street, the Union Pacific Railroad tracks, 71st Street and 22nd Avenue.

All 28 County Board seats and 17 aldermanic seats are up for re-election in the spring. Those seeking to run have until 5 p.m. Jan. 5 to file nomination papers.

The election is April 6. Primaries will be held Feb. 16, where needed.