Elijah Estabrooks II was born in 1728 in Enfield, Middlesex Co. Massachusetts.  In Captain Israel Herrick's Company, Colonel Jedediah Prebble's Regiment in 1758, Elijah was stationed at Lake Champlain.  He fought at Ticonderoga, NY and was discharged on November 7, 1758.  He re-enlisted on April 6, 1759, and was sent to Halifax, Nova Scotia where he stayed until November 25, 1760.  While the Sergeant was serving his country, his family remained in Boxford, Massachusetts.  He returned to Boxford on December 15, 1760.

Later, Elijah Estabrooks moved his family to Halifax and then Cornwallis, Nova Scotia.  He went up the St John River in 1763 to find his lot.  On October 18, 1765, he was employed by Simonds, Hazen, and White, the operators of a fur trading post and fishery at Portland Point, St John, New Brunswick.  In 1773, Elijah settled in Conway Township at the mouth of the river (St John now) on 250 acres of land.  By August 1, 1775, he had cleared and improved 7 acres and built a log house on lot number five next to the ship building plant.  Lot 6 was owned by Zebedee Ring, his son in law.  He moved from St. John to Gagetown in Queens County during the American Revolution.  He joined the Cumberland party, led by Colonel Jonathan Eddy,  to help the Revolution by trying to take Fort Cumberland.  On June 30, 1783, a survey party sent up the river recorded that he had a wife and 8 children, a log house with 2 rooms, and 12 acres cleared.  In 1787, he moved from Gagetown across the river to Cambridge Parish in Queens County, near Jemseg, where he was granted lot 32 (58 acres) on the Jemseg River and lot 25 (61.5 acres) on January 13, 1787. 

Elijah Estabrooks II is said to have remained hale and hearty to the last.  He spent his latter years with his son, John, at Swan Creek on the west side of the Saint John River near Upper Gagetown.  It is said there were two things he used to pray for; first, that he should never be sick and, second, that he should die at his work. He used to pound grain for the chickens in a mortar. One summer afternoon in 1796 after working for a while, he lay back in his chair and covered his face with his hat. His grandchildren, who were playing nearby, thought he was asleep.  But, when they went to waken him for supper, they found that he had died.  Elijah Estabrooks was buried in the Garrison graveyard at Jenseg, New Brunswick.