Family: David Brian Hannigan / Kerrie Maggert (F75)
 | John Dennis Hannigan (1935- ) |
 | JoAnne Clark (1935-1963) 
|
| John Clark Hannigan (1956- )  |
| Catherine Mae Hannigan (1957- ) |
| Debra Jo Hannigan (1962- ) |
| David Brian Hannigan (1960- )
|
| John Dennis Hannigan (1935- ) |
| JoAnne Clark (1935-1963)
|
| John Clark Hannigan (1956- ) |
| Catherine Mae Hannigan (1957- ) |
| Debra Jo Hannigan (1962- ) |
| David Brian Hannigan (1960- )
|