Familj: John Preben Melchior Iburg / Karen GRETE Elise Svendsen (F501299)
 | Frederik Emil Iburg (1905- ) 
|
 | Edith Eline Nielsen (1905- ) |
| Grethe Baltasar Iburg (1928-1986)  |
| Karl Vilhelm Svendsen (1886- ) |
| Ella Marie Svendsen (1892- ) |
| John Preben Melchior Iburg (1927-1998)
|