WESTFIELD – The field for the election to fill the Fourth Hampden District seat in the Massachusetts House of Representatives is taking shape.

Kelly Pease and City Councilor Dan Allie have been certified to appear on the ballot for the seat that will be vacated by John Velis, Debra O’Malley of Secretary of the Commonwealth William Galvin’s office confirmed. Velis was elected to the Second Hampden and Hampshire District seat in the Senate on May 19.

The two Republicans are now set for a primary election on Sept. 1. The general election is slated for Nov. 1

O’Malley also noted two potential candidates may be added to the ballot after taking out nomination papers. Democratic candidate Matthew J. Garlo has filed enough signatures to be on the ballot but is not yet certified as Galvin’s office had not received a receipt from the State Ethics Commission confirming that he has filed his statement of financial as of May 20. An unenrolled candidate, Ethan Flaherty, has taken out papers but has not yet returned them.

In addition to serving four terms on the city council, Allie is a small business owner and U.S. Army veteran.

“What I love most about working on campaigns is meeting many of the people who make Westfield such a great place to live. When I first ran for city council, I started by listening to my neighbors and residents and understanding their concerns,” Allie said in a press release. “As city councilor, I have put the interest of the people in Westfield first. If given the opportunity to serve as state representative, I will be a strong advocate for our city and promise to work every day to help the people of Westfield.”

Allie unsuccessfully ran for the seat against Velis in a 2014 special election. He has also participated in campaigns supporting former state Sen. and current Westfield Mayor Don Humason and former U.S. Sen. Scott Brown, among others.

Pease is also an Army veteran, having served 20 years with deployments to Afghanistan, Iraq, Kuwait, Qatar, Saudi Arabia, South Korea, Kosovo, Haiti, Germany, England, Australia, Canada, Italy, and Romania. Born in Westfield, he resettled in the city with his wife after retiring from the service.

He was also previously a member of the Chester Board of Selectmen as well as a volunteer firefighter and police officer.

In a press release, Pease said he “looks forward to continuing to serve as the next state representative for the city of Westfield” and “looked forward to meeting the people of Westfield and discussing the issues.”