Ancestry.com - Search Schools, Directories & Church Histories

Ancestry.com has searchable indexes; database results and some digitized images are available with a fee-based subscription.

Billy Graham Center Archives

Brethren Historical Library and Archives (BHLA)

Elgin.

Church Angel - Illinois Churches

Mass Times

Provides addresses for Catholic churches in the state organized alphabetically by city name.

Net Ministries Church Directory - Illinois

Quakers [Society of Friends] in Illinois

Roman Catholic Dioceses and Parishes within the United States - Illinois

United Methodist Church Directory - Illinois