High Quality Content by WIKIPEDIA articles! Lawrence Academy at Groton, (occasionally called LA or Lacademy), is a co-educational preparatory school located in Groton, Massachusetts, in the United States. Founded by Samuel Lawrence in 1793 as Groton Academy, and chartered by Governor John Hancock, Lawrence is the tenth oldest boarding school in the United States, and the third in Massachusetts, following Governor Dummer Academy (1763) and Phillips Academy at Andover (1778). Lawrence`s first headmaster was Samuel Adams Holyoke, a renowned musician. One of the school`s first benefactors was Col. William Prescott, a trustee and patron. The phrase on Lawrence Academy`s seal is "Omnibus Lucet": in Latin, "Let light shine upon all."