| Born: | 04/12/1876 - Concordia, Lafayette, Missouri [1][2] |
| Christened: | |
| Died: | 11/08/1956 - Lincoln, Logan, Illinois [2] |
| Buried: | St Louis City, , Missouri [2] |
| Father: | Heinrich Hermann Hamm |
| Mother: | Clara Elizabeth Louise Bergsicker |
| 1. | He appeared on the US Federal census on 06/01/1900 in Salt Pond, Saline, Missouri with his parents. [1] |
| 2. | He worked as a dental student on 06/01/1900 in Salt Pond, Saline, Missouri . [1] |
| 3. | He resided at Bridge Street on 06/01/1900 in Salt Pond, Saline, Missouri . [1] |
| 1. | Ancestry.com Operations, Inc., 1900 United States Federal Census, ED 141, Salt Pond, Saline, MO, sheet 4A, dwelling 80, family 80, line 30, Hamm, Henry A; Database and images, Ancestry.com LLC, Ancestry.com : 2010 (http://www.Ancestry.com/ : accessed 10/23/2019); citing Twelth Census of the United States, 1900 U. S. Census, population schedules, National Archives and Records Administration Microfilm Publication T623 (1854 rolls), Records of the Bureau of the Census, Record Group 29, National Archives, Washington, DC, roll 902, image 515 [Surety: 3]. |
| 2. | User submitted cemetery data, "Find A Grave," Dr Henry Amedeus Hamm (#66743318); Database online, Find-A-Grave (Jim Tipton, Founder), Find A Grave : 1995 (http://www.FindAGrave.com/ : accessed 12/23/2011) [Surety: 2]. |