Chart 1     [† means all children believed found, ‡ means death is computed at 112 years]

Janssen, Carl Ferdinand (b:1916)(d:1965)
. . . . .Janssen, Louise Rachel (b:1946)(d:1946)[with: Sweitzer, Jessie Irene]†
. . . . .Janssen, David Carl (b:1949)(alive: 2024)[with: Sweitzer, Jessie Irene]
. . . . . . . . . .Janssen, Johan Sigfrid (b:1980)(alive: 2025)[with: Moberg, Lynette Marie]
. . . . . . . . . . . . . . .Janssen, Malcolm Bowie (b:2016)(alive: 2016)[with: Pekarske, Nora Jean]†
. . . . . . . . . . . . . . .Janssen, Felix Mercury (b:2021)(alive: 2021)[with: Pekarske, Nora Jean]
. . . . . . . . . .Janssen, Carl David (b:1983)(alive: 2025)[with: Moberg, Lynette Marie]