void AddDaughter(TObject *daughter) { fDaughters.Add(daughter);}
void RemoveDaughter(TObject *daughter) { fDaughters.Remove(daughter); }
+ void RemoveDaughters() { fDaughters.Clear(); }
TObject* GetDaughter(Int_t i) { return fDaughters.At(i); }
Bool_t HasDaughter(TObject *daughter) const;
Int_t GetNDaughters() const { return fDaughters.GetEntriesFast(); }