Incumbents Burton Whitman and Bonnie DuBien are the only two candidates for the two three-year positions on the Board of Selectmen to be chosen during municipal elections in June. Janice Lavigne, Bruce Reed, and incumbents Bob Hamer and Angela Hinkley also filed their nomination papers for the Greenville school committee before the deadline Friday. Paula Hanson is the sole candidate for the one four-year term on the Shaw Public Library. There are no candidates for a five-year position on the library and the Moosehead Sanitary District. The annual town meeting will be held June 5 and 6.