- Father: James Warren COBB
- Mother: Martha Louse MATHYS
- Birth: 7/17/1899, Peoria, Peoria, Illinois, USA
- Residence: 1920, Princeville, Peoria, Illinois
- Death: 1/11/1973 , Toulon, Illinois, USA
Ancestors of Earl James COBB
/- COBB
/-Hiram COBB
| \-Unknown
/-James Warren COBB
| | /-Thomas C SMITH
| \-Maria Jane SMITH
| \-Mahalia CASTEEL
Earl James COBB
| /-Peter MATHYS
\-Martha Louse MATHYS
| /-Michael ZEHR
| /-Christian ZEHR
| | \-Catherine ESCH
| /-Andrew ZEHR
| | \-Barbara MOSIMANN
\-Louise ZEHR
\-Kathrina SPRINGER
| /-Michael ZEHR
\-Barbara ZEHR
\-Catherine ESCH