Franklin College in Franklin, IN has archives for Indiana Baptists(as well as general Indiana info and Franklin College records). The college is located just south of Indianapolis in Johnson County; mailing address is 501 E. Monroe, Franklin, IN, 46131.
For info on Roman Catholic parishes, a good starting point on the web is http://www.catholics.org/colweb/dioceses.html. Many parishes have baptismal, funeral, wedding, First Holy Communion records that can be a big boost to your research.
The Gospel Advocates Archives and Library has records for the Restoration Movement of the Church of Christ. Mailing address is: 1006 Elm Hill Park, Nashville, TN, 37210.
The Covenant Church maintains archives at North Park College, 5125 N. Spaulding Ave., Chicago, IL 60625. Phone #(312) 583-2700.
For info on the Evangelical Lutheran Church in America, write their archives library at 8765 W. Higgins Rd., Chicago, IL, 60631-4198.
Archives of the Mennonite Church can be found at 1700 S. Main St., Goshen, IN 46526.
Records of the Presbyterian Church in Indiana can be found at Hanover College's Duggan Library. PO Box 287, Hanover, IN 47243-0287
To learn more about the United Brethren in Christ, write the United Brethren History Center, RichLyn Library of Huntington College, Huntington, IN, 46750. (archives of Huntington College as well as the Church of the United Brethren in Christ.)
DePauw University maintains the archives of Indiana's United Methodist church, as well as the university. Write the Roy O. West Library at DePauw University, Greencastle, IN, 46135.
A Hoosier genealogist has visited here
