This is a timeline of Friedrich and Rosine Seidemann and their children.
For more detailed information on the family history please consult The History and Family Tree of the Friedrich Seidemann Family: fourth edition – 2005
| Year | Event |
|---|---|
| 1799 | 17 October - Friedrich Seidemann born in Ottendorf, Germany. |
| 1 November - Friedrich Seidemann baptized. | |
| 1809 | 19 February - Marie Rosine Koch born in Lippersdorf, Germany. |
| 14 April - Marie Rosine Koch baptized. | |
| 1824 | 8 March - Friedrich purchased house and land from his father and mother, Gottfried and Anna (Hegner) Seidemann in Ottendorf, Germany. |
| 1827 | 19 May - Friedrich married Marie Rosine Koch. |
| 1828 | 29 June - Traugott, their first son, born in Ottendorf, Germany. |
| 1 July - baptized as Johann Traugott Seidemann. | |
| 1829 | 29 July - Friedrich bought farm in Tissa, Germany. |
| 12 October - Friedrich sold the farm in Ottendorf Germany. | |
| 1830 | 20 March - Christiana Seidemann, first daughter (Mrs. Fred Luft) born in Tissa Germany. |
| 21 March - baptized as Christiane Friedrike Seidemann. | |
| 1831 | 7 July - Christiane Caroline born in Tissa Germany. |
| 11 July - Christiane Caroline died. | |
| 1832 | 17 June - Friedrericka Seidemann, born in Tissa Germany (Mrs. Charles Wermuth). |
| 19 June - baptized Hanne Friedrike Seidemann. | |
| 1835 | 28 March - Johanna Seidemann born in Tissa Germany (Mrs. Christian Gerner). |
| 31 March - baptized Hanne Rosine Seidemann. | |
| 1837 | 30 November - Paulina Seidemann born in Tissa Germany (Mrs. John Gerner). |
| 3 December - baptized Friedrike Pauline Seidemann. | |
| 1840 | 30 January - Rosina Seidemann born in Tissa Germany (Mrs. Edward Schubert). |
| 2 February - Marie Rosine baptized. | |
| 1841 | 28 September - Friedrich Seidemann born in Tissa Germany. |
| 2 October - baptized Johann Friedrich Seidemann. | |
| 1843 | 20 September - Carl Seidemann born in Tissa Germany. |
| 23 September - baptized Johann Karl Seidemann. | |
| 1847 | 17 May - Unnamed male born. |
| 17 May - Unnamed male died. | |
| 1848 | Traugott joins Sachsen-Altenburg Army. |
| 1853 | 18 August - sold the farm in Tissa. |
| 30 August - Traugott honorably discharged from the Army. The entire family prepares for their voyage to America. | |
| 18 November - the ship docks in New York City. | |
| Mid December - arrived at the Rodigast farm in the Town of Farmington, Washington County, Wisconsin. | |
| 1854 | 13 March - Traugott purchased a 20 acre farm in the Town of Farmington. |
| 27 June - Traugott sold his 20 acre farm to his father Friedrich. | |
| 27 June - Friedrich & Christiana (Seidemann) Luft arrived in New York City. | |
| 1856 | 14 November - Traugott purchased additional land for his father, and the farm next door for himself. |
| 1858 | 2 February - Friedrich purchased another tract of land in Town of Trenton. |
| 1859 | 9 April - Friedrich and Traugott help organize St. John's Lutheran Church in Newburg. |
| 1861 | Civil War breaks out. |
| 1862 | Abraham Lincoln issued a call for 300,000 men to serve a three-year military term. |
| Friedrich (Friedrich & Rosine's eighth child) enlists in 26th Regiment. | |
| 1863 | 1 and 2 May - Battle of Chancellorville, Virginia. |
| 1 July - Battle of Gettysburg, Pennsylvania. | |
| 23 September - 26th Regiment loaded on to trains for Tennessee. | |
| 4 October - Friedrich dies in Nashville, Tennessee. | |
| 1868 | 24 September - Friedrich and Rosine sell the farm to their youngest son, Carl. |
| 1884 | 1 March - Carl sells to Fred Seidemann (Traugott's son) with stipulation that he take care of his grandparents. |
| 1888 | 1 January - Friedrich dies at the age of 89 years. |
| 1890 | 3 January - Rosine dies at the age of 78 years. |