Cousins 
 Mary mom Sue 
 Jeff dad Ed 
 Ed dad Ellen 
 Sue mom Dave 
 Mary mom Ellen 
 Jeff dad Ed  
 Ellen mom Ed 
 Ed dad Dave 
 Jeff dad Ellen 
 Ellen mom Ed 
 Mary mom Sue 
 Sue mom Dave 
 Mary sister Jeff
 Sue and Ed
 Ed and Ellen
 Sue and Ellen
 Ed brother Sue
 Ellen and Dave
 none known
 none known
 Jeff brother Sue
 Ed and Dave
 none known
 Ellen and Dave
 Ellen sister Sue
 none known
 none known
 Ed and Dave
 Mary sister Ed
 Sue and Ellen
 impossible combination
 none known