- [S1] Velten, Frank Joseph. Death Certificate No. 57-10935, filed 15 Nov 1957, Missouri Department of Health and Senior Services, Bureau of Vital Records, Jefferson City, Cole County, Missouri.
- [S5] Velten, Joseph Frank. Death Certificate No. 22665, filed 8 Jul 1944, Missouri Department of Health and Senior Services, Bureau of Vital Records, Jefferson City, Cole County, Missouri.
- [S8] Velten, Frank J. & Ethel Oyler. Marriage License , 4 Jun 1906. Cert. 1906K0034841 , Recorder of Deeds Office , Kansas City, Jackson County, Missouri.
- [S59] Joseph Thess. Death certificate no. 55-022878, February 10, 1955, State of California, Deaprtment of Health Services, Office of Vital Records, Sacramento, Sacramento County, California.
- [S82] Busch, Nancy, to David Velten. Letter dated 27 Feb 1995 at 39 Oakwood Dr., Arnold MO 63010. Personal files of David Velten, Bolton, Massachusetts. 1995.
- [S124] Seigley, Jean, comp. Marriages of Seneca County, Ohio, 1841-1899. Tiffin, Ohio: Seneca County Genealogical Society, Chapter of the Ohio Genealogical Society, 1994.
- [S129] Velten, Henry Joseph. Birth record, Macon County Birth Register, vol. K, p. 162, filed 26 Dec 1913. Macon County Courthouse, Decatur, Macon County, Illinois.
- [S130] Velten, Wilbur P.. Birth record, Macon County Birth Register, vol. L, p. 645, filed 31 Jan 1916. Macon County Courthouse, Decatur, Macon County, Illinois.
- [S133] Koerper, Huberd und Velden, Margaret. Marriage entry, 13 Apr 1880. "Liber Matrimoniorum Congregationes Assumptionis, Beatae Mariae Virginis, Dioceses Clevelandensis, initiens Anno Dom. 1867," (Book II), Original document at the St. Michael's (now St. Gaspar) parish office, Frank, Seneca County, Ohio.
- [S163] Velten, Joseph F. & Mary Ann Simmons. Marriage License , 10 May 1882. Barry County Marriage Records : Barry County Courthouse , Cassville, Barry County, Missouri.
- [S164] Velten, Joseph F. & Mary Ann Simmons. Marriage Return , 12 Jun 1882. Barry County Marriage Book : Barry County Courthouse , Cassville, Barry County, Missouri.
- [S176] Social Security Administration. Social Security Death Index V1.20. Washington, DC, 1993.
- [S202] Fritz, Franciscum Josephus. Baptismal entry, 6 Mar 1878. "Liber Baptismorum Congregationes Assumptionis Beatae Mariae VIrginis, Diocesis Clevelandensis, fondata Anno D. 1867," (photocopy of original church book provided by James Daniel, Los Angeles, California), 1878, item 4. Original document at the St. Michael's (now St. Gaspar) parish office, Frank, Seneca County, Ohio.
- [S241] Ebel Co.. Ebel's City Directory, 1918. Decatur: Leshnick Directory Corp., 1918.
- [S385] Obituary of Mary Anna Velten, The Southwest Journal, Pierce City, Missouri, 7 Mar 1907.
- [S547] Velten, Minnie C.. Death Certificate No. 80-202626, filed 21 Apr 1980, Missouri Department of Health and Senior Services, Bureau of Vital Records, Jefferson City, Cole County, Missouri.
- [S548] Velten, Frank J. und Velten, Minnie C., Tombstone. St. Trinity Cemetery, Lemay, St. Louis County, Missouri. Read and photographed by author.
- [S549] Unkauf, Wilhelmine Caroline. Baptismal record, 15 Apr 1892. "Baptismal Certificate," (photocopy of the original, a Fraktur certificate printed by Wartburg Publishing House in Waverly, IA), Original in possession of Richard Velten, Ballwin, Saint Louis County, Missouri.
- [S574] Social Security Death Index [database on-line]. Online at Ancestry.com, www.ancestry.com.
- [S658] Velton, Frank J. & Minnie Unkauf. Marriage Return , 30 Nov 1912. St. Charles County Marriage Book 13 : 256 , St.Louis County Library Headquarters , Clayton, Saint Louis County, Missouri.
- [S772] Velten, Frank J. & Ethel Sarah Oyler. Divorce Petition , April term. File no. A77828 : Archives of the Circuit Court , Saint Louis City Court House , Saint Louis, Missouri.
- [S851] Római Katólikus Egyház, Csonoplya. Kereszteltek (Baptisms) vol. 3, 1871-1895. Micropublication, 5 rolls, film no. 0638109. Salt Lake City: Filmed by the Genealogical Society of Utah, 1964.
- [S855] Római Katólikus Egyház, Bács. Kereszteltek (Baptisms) 1861-1895. Micropublication, 4 rolls, film no. 0638057. Salt Lake City: Filmed by the Genealogical Society of Utah, 1964.
- [S857] Thess, Eva Elizabeth. Death Certificate No. 10395, filed 30 Oct 1962, Missouri Department of Health and Senior Services, Bureau of Vital Records, Jefferson City, Cole County, Missouri.
- [S858] Joseph Thess, Certificate of Citizenship, duplicate issued September 7, 1938. No. 426117. Original in possession of John H. Thess, Orange, California, Orange, Orange County, California.
- [S865] Eugene Victor Velten. Birth Certificate No. 55611, Registrar's No. 899, 18 Dec 1919. Macon County Courthouse, Decatur, Macon County, Illinois.
- [S867] Thess, Catherine Frances. Baptism Certificate, 29 Jun 1919. "Certificate of Baptism," (extracted from the church Baptismal Register on June 3, 1927), page 408. St. Mary's Cathedral, Cheyenne, Laramie County, Wyoming.
- [S868] Notice of Separation from U.S. Naval Service. Eugene Victor Velten, SN 668-26-69. David Velten, Personal library of David Velten, Bolton, Massachusetts.
- [S879] Records of St. Anthony of Padua Catholic Church, St. Louis, Missouri. Marriages, 1935-1943. Micropublication, 3 rolls, roll no. 1887323, item 3. Salt Lake City: Genealogical Society of Utah, 1993.
- [S880] Records of St. Anthony of Padua Catholic Church, St. Louis, Missouri. Marriages, 1943-1950. Micropublication, 3 rolls, roll no. 1887323, item 4. Salt Lake City: Genealogical Society of Utah, 1993.
- [S886] Records of St. Martin of Tours Church, Lemay, Missouri. Marriages, 1959-1970. Micropublication, 1 roll, roll no. 1888513, item 6. Salt Lake City: Genealogical Society of Utah, 1993.
- [S887] Records of St. Martin of Tours Church, Lemay, Missouri. Deaths, 1940-1993. Micropublication, 1 roll, roll no. 1888513, item 8. Salt Lake City: Genealogical Society of Utah, 1993.
- [S889] Records of St. Bernadette Church, Lemay, Missouri. Baptisms, 1951-1954. Micropublication, 1 roll, roll no. 1888194, item 6. Salt Lake City: Genealogical Society of Utah, 1993.
- [S893] Velten, Mary Anna, Tombstone. Saint Mary's Cemetery, Pierce City, Lawrence County, Missouri. Read and photographed by author, Jul 1995.
- [S894] Velten, Joseph F. & Mrs. Minnie Phillips. Marriage License and Return , 25 Nov 1910. Barry County Marriages Book K : 445 , Barry County Courthouse , Cassville, Barry County, Missouri.
- [S910] California Death Records (1940-1997). Sacramento: California Department of Health Services, Office of Health Information and Research Vital Statistics [online at http://vitals.rootsweb.com/ca/death/search.cgi].
- [S942] Social Security Administration. Death Index. RootsWeb site, online (http://www.rootsweb.com).
- [S1070] Records of St. Mary Catholic Church, Sandusky, Erie County, Ohio. Baptisms 1853-1876. Micropublication, 4 rolls, roll no. 2314887, item 1. Bowling Green, Ohio: Center for Archival Collection, Bowling Green State University, 2002.
- [S1094] Obituary of August Henry Unkauf, Decatur Daily Review, Decatur, Illinois, 18 Aug 1928.
- [S1126] World War I Selective Service System Draft Registration Cards, 1917-18. Ancestry online database (Provo, UT: Ancestry.com, 2002); Micropublication M1509, 20,243 rolls. National Archives and Records Administration.
- [S1137] U.S. Department of Commerce, Bureau of the Census. Fifteenth Census of the United States, 1930: Population Schedule, Microfilm Publication T626, 2,667 rolls. National Archives, Washington, DC.
- [S1233] National Archives and Records Administration. "U.S. World War II Army Enlistment Records, 1938-1946 [Ancestry on-line database]." Original data: Electronic Army Serial Number Merged File (archival database). Record Group 64, College Park, Maryland.
- [S1237] Obituaries, Saint Louis Post-Dispatch, Saint Louis, Missouri,.
- [S1246] Velten, Robert K.. Death Certificate no. 3271, filed 25 Jan 1928, Missouri State Digital Archives, Jefferson City, Cole County, Missouri.
- [S1295] U.S. World War II Draft Registration Cards, 1942 [database online], compiled from Selective Service Registration Cards, World War II: Fourth Registration, located at National Archives and Records Administration branch offfices. Online at Ancestry.com, http://www.ancestry.com
- [S1475] Missouri Birth Records, 1847-2002 [database on-line]. Online at Ancestry.com, http://www.ancestry.com
- [S1560] Find a Grave Cemetery Database [database on-line]. Salt Lake City, UT: Jim Tipton. Online at http://www.findagrave.com
- [S1667] Ferguson, Marcia. Smith Family. Ancestry Family Trees, 2010. Ancestry.com.
- [S1670] Thess, Joseph George und Weinert, Eva Elizabeth Descendant Chart. Draft prepared March 2010 by Estate Research Associates, San Ramon, California. A chart of heirs prepared for probating the estate of Dennis Lee Smith.
- [S1756] Velten, David, Personal knowledge. Bolton, Massachusetts.