"St. Agatha bears the name of a Sicilian saint of the third century. The town was formerly a part of Frenchville and was settled by the Acadians. It was set off and organized as a town in 1899. A few saw mills remind one of the once active lumber industry.
"I am indebted to Mr. Edw.L. McMonagle, Director of Schools in Unorganized Territory of Maine, for the following information:
"The town of St.Agatha, incorporated in 1899 took the name from the parish church which had been established there in 1890, under the patronage of St. Agatha. Bishop Healy in separating the new parish from the parent, the parish of St. Luce or Lucy, gave it the name of St. Agatha because of the association of the two saints ..." (Chadbourne, p.437)