Father Leclerc was born December 30, 1876 in Ste. Sophie de Lac Megantic, Quebec. However, after a short time in Maine where his father died the family moved to Manchester New Hampshire.

On June 29, 1902 Alphee Leclerc was ordained at St. Joseph Cathedral by Bishop Bradley, the  first bishop of Manchester.  For seven years he was the associate of Father Davignon at St. Georges Parish.  In 1909 Father Leclerc was appointed pastor of Our Lady of the Mountains of North Conway.  He also served the surrounding mission churches in the White Mountains.

He was called back to Manchester Bishop Guertin to establish yet another French speaking parish detached from Ste. Marie on July 1, 1914.  He was able to purchase land on Kelly Street and on April 19, 1915 began the construction of St. John the Baptist Church. He stayed there for seven years until he was asked to be the pastor of Ste. Marie.

Father Leclerc purchased a large parcel of land on Cartier Street where he hoped to build a replacement school for the Holy Angels building however the Great Depression was taking its toll in Manchester and the plans for a new school was dismissed entirely.  Nevertheless, he remodeled the two existing school buildings with the most modern technology of the time and by September 8, 1924, Father Leclerc founded Ste. Marie High School.  The first class had an enrollment of twenty girls.

Father Leclerc turned his attention to the improvement and enhancement of Mt. Calvary Cemetery.  He had the Mt. Calvary altar built which is used in liturgies to this day. 

It was at Fr. Leclerc’s request that the Sisters of St. Joan of Arc came to maintain the Rectory and serve the priestly staff. He also restored the interior of the church for the fiftieth anniversary of the parish.

On April 30, 1940 Father Leclerc was found dead in his study by the assistant pastor, Father Wilfred Chartier.  Dr. Larochelle, who lived next door, was called and pronounced him dead.  He was buried in a crypt under the Calvary monument he had so loved.