Peter Brandejs was born 1 January 1804 in Madison, Wisconsin, United States to Boris Brandejs (1780-1850) and Sabina Hampl (1784-1860) and died 21 July 1884 Madison, Wisconsin, United States of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Deborah Brandejs (1832-1901) | 23 January 1832 Madison, Wisconsin, United States | 10 March 1901 Chicago, Illinois, United States | Mark Keeley (1828-1904) |
Siblings
| Name | Birth | Death | Joined with |
| Peter Brandejs (1804-1884) | 1 January 1804 Madison, Wisconsin, United States | 21 July 1884 Madison, Wisconsin, United States | Mary Jane O'Donnell (1806-1882) |