Dr. Lawrence Otis Hatch, known to all as Larry Hatch, died on March 20, 2023 at the age of 88. He passed at home in Gorham, Maine with his family by his side. Larry was born April 8, 1934 to Norman and Frances Hatch of Saugus, Massachusetts. He spent his formative years growing up in Spruce Head, South Thomaston, Maine. After graduating from Rockland High School in Rockland, Maine in 1952; Larry received his BA in Mathematics from Brown University in 1956, his Master of Science in Mathematics from Purdue University in 1958 and his PhD in Statistics from the University of Connecticut in 1969. Larry had a lifelong love of Education. He was an Associate Professor of Mathematics at Northern Michigan University (1960-1962), a Professor of Mathematics at the Coast Guard Academy in New London Connecticut (1962-1969) and later served as an Adjunct Professor of Graduate Statistics at the University of MD, College Park. He had a distinguished career working in Cryptography with the National Security Agency (NSA) from 1969 to 1994 where he made many valuable contributions to our country. His love of education came into his work as well. He was key to the internal Education Program at NSA. Larry met his wife, Alice M. Daugherty in 1955 while they were both working at the Poland Springs Hotel in Poland Springs, Maine. They married August 24, 1957 in Hodgenville, Kentucky. They raised their family in Columbia, Maryland and retired first to Frederick, Maryland and then to Spruce Head, Maine and finally Gorham, Maine. A lifelong member of the United Church of Christ (UCC). Larry was a member of the Christ Congregational Church in Silver Spring, Maryland, then the Evangelical UCC in Frederick, Maryland, as well as the Rockland Congregational Church in Rockland, Maine and the First Parish Church in Gorham, Maine. During his retirement years, Larry was an avid cribbage player and a member of the American Cribbage Congress. He studied weaving on floor looms, and loved to do the NYT crossword puzzles. Larry is survived by his wife of 65 years, Alice M. Hatch, his daughter, Lydia A. Hatch, her husband Jeffrey Martynuska, his granddaughter, Helen H. Martynuska and his son, Myles C. Hatch. A graveside memorial service will be planned for the end of May / early June in Spruce Head, South Thomaston, Maine.