With the deadline for pulling nomination papers scheduled for Thursday at 5 p.m., the lone contested race in Merrimac’s May 6 annual town election could be for town clerk, where 25-year incumbent Pat True is being challenged by assistant town clerk Ellen Miracle. At press time, there was no candidate for three positions — Planning Board, Board of Health, and the Pentucket Regional School Committee — and Harold Lloyd was the lone candidate running to replace veteran Selectman Earl Baumgardner, who is not seeking reelection. In addition to those positions, voters will select candidates for assessor, light commissioner, two library trustees, two constables, Housing Authority, and cemetery trustee. Candidates must return nomination papers with the signatures of 25 registered voters by March 12 at 5 p.m. to be listed on the ballot. The last day to register to vote for the election is April 10.