PORTLAND — Unofficial winners have been determined for two Casco Bay Lines trustees’ seats, but a third is still undecided.

Patrick Flynn won the Peaks Island seat on the ferry district’s board with 537 votes. Robin Clark, a declared write-in candidate, had 29 votes.

For the Great Diamond Island seat, Roger Robinson defeated Kate Hoffner, 308 to 276.

Officials still haven’t counted the ballots for Little Diamond Island. No one had their name on the ballot, but Scott Johnston was the only declared write-in candidate.