The area where Immaculate Conception Parish is located had its Christian beginnings as early as 1679. Fr. Louis Hennepin, the great missionary who accompanied LaSalle on his search for the Mississippi, came ashore from the ship called The Griffon and planted a cross in what is now the Anchorville, Fair Haven area.
The first Catholic settlers, mostly of French descent from the Province of Quebec, arrived in the eighteenth century. A few tribes of the Chippewa Indians lived in the area that is now Fair Haven and New Baltimore. The residents, new and old, lived by hunting and fishing.
By 1850 the fame of the area, originally called Au Lac (near the lake), had become so widespread that immigration from France, Belgium, Holland, Germany and Switzerland was common.
The residents of the area were visited by Missionary Fathers from Canada, and French priests from Detroit. Later, clergy from parishes in Mt. Clemens, Marine City and Grosse Pointe would visit the area.
One of the first settlers, Etienne Rose, deeded a portion of his land to the church and the first log cabin church was built. Rose also deeded land for a cemetery. This log cabin church was built on the site where the current church now stands.
In 1853 Rt. Rev. Peter P. Lefevere, then Bishop of the Detroit Diocese, determined that it was time to send a permanent priest to the area. Rev. Charles A. Chambille arrived and stayed with private families until he was able to build a rectory. Being one of the first in the United States, the church was dedicated to the Immaculate Conception of the Blessed Virgin Mary on October 15th of that year. Fr. Chambille did many good works at Immaculate Conception until he was transferred to the parish of Greenfield, now St. Alphonsus of Dearborn, in 1859. Fr. Chambille died June 2, 1883.
On December 4, 1885, Au Lac was renamed Anchorville when a post office was established.
Immaculate Conception parish thrived and grew under the leadership of various pastors until August 26, 1917 when the entire complex of church, rectory, sisters home and school were destroyed by fire during the tenure of Rev. Fr. James Downey. Being a very courageous leader and with the loyal support of the people of the parish, within a year the church and school were rebuilt. Fr. Downey was with Immaculate Conception for 22 years. Even when his own health was failing, he took care of the sick. Fr. Downey died suddenly of a heart attack on the morning of September 19, 1935. More than 1,000 attended the Requiem High Mass including 4 Monsignors, 110 priests and 50 nuns.