Family: Gustav R. Radtke / Mathilda Alvina Brummond (F20)
m. 1896 | Carl Brummond (1847-1906) |
 | Louisa Klemm (1855-1936) |
| Ottilia Brummond (1873-1881) |
| Hulda Maria Brummond (1878-1903) |
| Emily Augusta Brummond (1880-1924) |
Lena (Paulina) Louisa Brummond (1883-1973)  |
| Wilhelm Brummond (1884- ) |
| Charles Frederick Brummond (1886- ) |
| Fred Brummond (1888- ) |
| Heinrich Christopher Julius Brummond (1890-1985) |
| Herbert Edwin Brummond (1892-1972) |
| Otto H. Brummond (1894-1982) |
| John Dan Brummond (1895-1971) |
| Rudolph Brummond (1897-1972) |
| Edgar Brummond (1900- ) |
| Rosa Brummond (1899- ) |
 | Gustav R. Radtke (1872-1937) |
 | Mathilda Alvina Brummond (1876-1969) 
|
| Hildegard Radtke (1899- ) |
| Lillian Radtke (1900- ) |
| Sylvia Radtke (1902- ) |
| Sarah (Sally) Radtke (1906- ) |
 | Mildred Hulda Radtke (1903-1970) |
 | Gladys Augusta Radtke (1906-1992) |
| Grace Radtke (1909- ) |
| Wesley Radtke (1910- ) |
| Ruby Radtke (1913- ) |
| Harriet Radtke (1914- ) |
| May Radtke (1916- ) |
| Ralph Radtke (1917- ) |
| Eldred Radtke (1919-2011) |
| Ellsworth Radtke (1919-1990) |