The book Rideouts in America is and excellent reference also The Maine Historical & Genealogical Recorder 1886 (Nicolas Rideout).
The Nicholas Rideout that came to Maugerville was Nicholas Rideout Jr. 1737-1833 he was born in Falmouth ME and died in NB.He was the son of Nicholas Sr. who was the son of Abraham and Mary Rideout.He married Sarah Oliver.Here is what Rideouts in America has to say.
A(3)2. 4. Nicholas Jr . , b. 17 Feb. 1738 at Falmouth, Portland (later changed to Cumberland) Me. d. 1833, md. 8 Dec. 1761, at Georgetown, Sagadahoc, Me. to Sarah Oliver, b. abt. 1740 of Georgetown. Son of Nicholas and Mary Ingersoll. Issue: All b. Maugerville, York, Canada.
+A(4)2.4.1. Nicholas. +A(4)2.4. 2. Thomas. tA(4)2.4. 3. Oliver. t A(4)2.4.4. Abraham. A(4)2. 4. 5. Sarah, b. 1772, md. Mr. Brown. A(4)2. 4.6. Molly, b. 1775, md. Mr. Carroll. t A(4)2.4. 7. William Penn. A(4)2.4. 8. Hannah, b. 1779, md. 7 Jan. 1793 to Samuel Treadwell. A(4)2.4. 9. Grace, b. 1781, md. Jonathan Adams. +A(4)2.4.10. Nathaniel. t A (4) 2.4.11. Benjamin, b. 1786. A(4)2.4.12. Joseph, b. 1786, twins.
Nicholas joined the Perley Colony and migrated to Maugerville, New Brunswick, Canada in 1762. He was the ancestor of most of the Rideouts of New Brunswick. In 1765, the government of Nova Scotia granted Nicholas some 500 acres of land in Maugerville. In 1757, he was a member of the Georgetown Militia. It is said he was a ship builder and worked with his father. He went to New Brunswick with the "Perley Colony", which was composed of a large number of Massachusetts and Connecticut families. One account says these people went to N.B. in one of Rideout's ships. They were nearly all farmers and most of them sympathized with the American Colonies. Among these Maugerville Colonists, Nicholas seems to have had great weight and influence. He had quite a little wealth and owned several vessels. In Kidder's valuable book called Eastern Maine and Nova Scotia During the Revolution, is an extract of a letter from Colonel John Allen to the Massachusetts Council, Boston, 25 Feb. 1777.
"I must beg leave at this time to acquaint your Honours, that the inhabitants of the county of Sudbury in Nova Scotia, now a county in N. B. had authorized me to appear in their behalf and agreeable to instructions would make known their warm and zealous attachment for the United States. Esteeming themselves the subjects of the States and are determined to defend the cause to their utmost.”
The American Colonies then sent troops to Sudbury Co. to protect these people, and John Allen was made 1st Colonel for the Expedition to the St. John River.