After taking
Holy Orders, he preached for two years as an
English Presbyterian minister at St. Ives. According to
Miss Susan Gay's Falmouth chronology, Tregosse formed an
Independent Congregation in Falmouth in 1662. At the first congregation at the
Congregational Sunday School,
Falmouth was gathered by the Reverend Mr. Tregoss. In 1663, he preached privately at
Budock. For preaching at the
Church of Saint Laud, Mabe, he was again jailed for three months at
Launceston gaol (jail). After his release, he preached again at the same church, and was subsequently imprisoned again. Tregosse's imprisonment for holding a
Conventicle at Budock is noted in "The Episcopal Returns of 1665-6" section of the Congregational Historical Society's
Transactions. After his fourth time in custody, he was set free September 1667 by special order of
King Charles. He was jailed again in 1669 for preaching privately in a house at
Great Torrington. In his later years, he preached on Sundays, Tuesdays, and Thursdays. ==Personal life==