New Hampshire House, Hillsborough District 39

William Infantine is a bond manager at USI New England who previously served as a New Hampshire state representative from 2002 to 2016 and from 2020 to 2024. Infantine holds a bachelor's degree in business administration from Saint Michael's College, according to Citizens Count. No campaign website was found as of September 11, 2026; the Secretary of State's primary results are the only verifiable source for William Infantine.

Jon DiPietro works in digital marketing and lives in Manchester, according to Citizens Count. No campaign website was found as of September 11, 2026; the Secretary of State's primary results are the only verifiable source for Jon DiPietro.

Ellen A. Boudreau is a senior management analyst for the State of New Hampshire, a position held since 1999. Boudreau holds a bachelor's degree in business management from Franklin Pierce University and previously worked in sales administration at Cisco Systems and Scitex America, according to Citizens Count. No campaign website was found as of September 11, 2026; the Secretary of State's primary results are the only verifiable source for Ellen A. Boudreau.

Tommy Katsiantonis is the Democratic nominee for New Hampshire House, Hillsborough District 39 on the November 3, 2026 ballot, per the New Hampshire Secretary of State's September 8, 2026 primary results. Thomas Katsiantonis is a restaurant owner who previously served in the New Hampshire House of Representatives from 2003 to 2004 and from 2008 to 2018, according to Citizens Count. No campaign website was found as of September 11, 2026; the Secretary of State's primary results are the only verifiable source for Tommy Katsiantonis.