[2][1] In 1894, he received a Bachelor of Divinity degree from Yale University and was ordained into the Congregational ministry.

[3][4] In 1903, Proctor joined George Washington Henderson, president of Straight University, a black college in New Orleans, to found the National Convention of Congregational Workers Among Colored People, and Proctor became its first president.

[1] In the church, Proctor provided amenities lacking in the black community such as a library, a kindergarten, an employment bureau, a gymnasium, a ladies’ reading parlor, a music room, counseling services, and a model kitchen and sewing room for girls.

In 1919 after World War I, Proctor ministered to black American troops in Europe.

Afterwards he led the Nazarene Congregational Church in Brooklyn, the place where Proctor lived the rest of his life.