It was first a mission to the St. Johnsbury parish. At that time 319 people were listed as members of the mission. Mass was celebrated at St. Michael on the second Sunday of each month. Seven Greensboro children made their First Communion in 1892. For a time in the 1890’s St. Michael was a mission of St. Paul’s Parish in Barton. Father Joseph Turcot of St. Paul’s Parish baptized many Greensboro, Walden and Hardwick babies.
A rectory was built across the street from the church. Our Lady of Fatima then became a mission of St. Michael Parish. A new St. Michael Church was built in 1967 while Father John Ledoux was pastor. St. Michael Parish had four more pastors, Father Julien LaFlamme, Father Leonidas Laroche, Father John Hamilton and Father Donald Ritchie.
In 1991, St. Michael Parish marked 100 years of service to its spiritual flock with Bishop John Marshall as chief celebrant at a special Mass. In 1993, due to the shortage of priests, St. Michael was yoked with St. Norbert and Our Lady of Fatima in a Tri-Parish configuration under the spiritual leadership of one pastor based at St. Norbert. Father Ritchie was the last priest to serve as pastor of St. Michael as a singular parish.