Did Tobirama Have a Kid?

He was the child of Katsumi Uchida and Tobirama Senju. The baby was born one month premature and died during birth.

Does Tobirama have a daughter?

Amarante Senju (千手アマランテ, Senju Amarante) was a kunoichi of Konohagakure and the daughter of Tobirama Senju.

Is jiraiya the son of Tobirama?

There is no proof that Tobirama and Jiraiya are related, but Tobirama seems to have an entire family tree available, which Jiraiya would presumably be included in if they are, in fact, related.