Donald Dorsey Jr. ’50 died September 18, 2014, at his home in Freeport. He was born in Portland on May 16, 1928, and graduated from Deering High School. He was a member of Theta Delta Chi fraternity.After graduating from Bowdoin, he went on to earn master’s degrees in molecular biology at Syracuse University in 1960 and in biology at Simmons College in 1964. He served to private first class in the Army during the Korean War. He taught biology at Falmouth High School for eleven years and continued to maintain connections with his students for many years. In 1967, he began teaching biology at the University of Maine, Portland-Gorham (now University of Southern Maine), with a special interest in marine biology and oceanography, and remained there until his retirement in 1997. In 1975, he took a sabbatical to study at the University of North Wales. He also spent nineteen summers participating in the summer training cruises with the Maine Maritime Academy, conducting oceanic plankton studies and traveling to many places, including the Galapagos Islands and Russia. He is survived by his wife Lorna; sons Mark and Michael Dorsey; daughters Maria Logan, Eliza and Laura Dorsey, and Paula Vosmus; twelve grandchildren; and his sister Anne Loth.