| Birth | 15 May 1815 | Marie Elizabeth Niegengert was born on 15 May 1815 in Hanover, Germany. |
| Marriage | 21 Nov 1843 | She and Carl Heitmeyer were married on 21 Nov 1843 in Old St. Mary's Church, Cincinnatti, Hamilton County, Ohio.  |
| Marriage | 1 Jun 1845 | Marie Elizabeth Niegengert and Herman Theodore Bunkers, son of Johann Bernard Bünker and Susanna Adelheid Mensen, were married on 1 Jun 1845 in Old St. Mary's Church, Cincinnati, Hamilton County, Ohio. |
| Name Variation | 1 Jun 1845 | As of 1 Jun 1845, Marie Elizabeth Niegengert was also known as Bünker. |
1860 Census
(Spouse of Head)
| 31 Jul 1860 | Marie appeared in the 1860 Federal Census of Liberty Township, Dubuque County, Iowa, as Mary E. Benkers, with her husband, Herman Theodore Bunkers, and their children, Herman, Henry, Bernard and John. She is a white female, age 46. She was born in Hanover. |
1870 Census
(Spouse of Head)
| 28 Jul 1870 | Marie appeared in the 1870 Federal Census of Liberty, Dubuque County, Iowa, as Marie E. Bunkers, with her husband, Herman Theodore Bunkers, and their children, Herman, Henry, Bernard, John and Herman. She is a white female, age 55. Occupation is keeping house. She was born in Hanover. Her mother and father are of foreign birth. |
1880 Census
(Spouse of Head)
| 2 Jun 1880 | Marie appeared in the 1880 Federal Census of Dyersville, Dubuque County, Iowa, as Elisabeth Bunker, with her husband, Herman Theodore Bunkers. She is a married white female, age 63. Wife of head of household. Occpuation is keeping house. She was born in Hanover. Her mother and father were born in Hanover. |
| Death | 25 May 1892 | Marie Elizabeth Niegengert died on 25 May 1892 in Remsen, Plymouth County, Iowa, at age 77. |
| Burial | 27 May 1892 | She was buried on 27 May 1892, age 77, in Saint Mary's Cemetery, located in Remsen, Plymouth County, Iowa. |
Marie Elizabeth Niegengert 