For Siva we have numerous examples. For Kartikeya we have a reference from Mahabharata. How about Ganesa and Parvati?
Your question is actually duplicate of a set consisting of the following questions,
- Which Vedic verses depict Lord Shiva/Rudra as the Brahman?
- Is there any verse declaring Maa Parvati or Maa Durga as supreme goddess?
- Which scriptures portray Lord Ganesha to be the supreme God?
- Do any scripture portrays Lord Kartikeya (Murugan) to be the Supreme God?
In any case, the answer is Yes.