Unity Commencement 

Unity College held its commencement ceremony on Saturday.In all, 87 degrees were awarded.A law enforcement chaplain and best-selling author from Maine received an honorary Doctor of Environmental Citizenship from Unity College.Four other people received citations from the college for their environmental work. One of them was former longtime Yarmouth tree warden Frank Knight.For decades, Knight cared for the giant elm nicknamed “Herbie.”It was the largest American elm in New England before being cut down in January.