The field of candidates vying for the at-large seat on the Des Moines City Council got larger this week. Marlon Mormann, a retired administrative law judge, has filed nomination papers at the Des Moines city clerk’s office. Six other people – Marlu Abarca, Marco Battaglia, Jackie Easley, Sheila Knoploh-Odole, Ethan Standard and Carl Voss – have announced plans to run for the at-large seat held by Chris Coleman for the past 20 years. Coleman has said he doesn’t plan to run in the Nov. 5 election. Mormann has been active in local neighborhood groups in which he has held various officer positions and performed hundreds of hours of volunteer work. He is vice president of the Des Moines Historical Society and a past president and current member of Northeast Neighbors Inc. “We are taxing our seniors out of their homes and taxing our children into other cities,” Mormann said in a news release. “I hear this all the time from retired homeowners that the property taxes are destroying their retirement years.” A candidate must receive a majority of votes to win the election. If no one receives a majority, a runoff will be held between the top two vote-getters. The deadline to file nomination papers is 5 p.m. Sept. 19.