3
he was shot by the FBI
Flynn
It was not specified in the episode "Phineas and Ferb's Quantum Boogaloo."
Ferb is Phineas's stepbrother. Phineas's mom married Ferbs dad.
Yes. They will get married.
Yes, they did.
Yes, Phineas Gage was married twice. His first marriage was to J. M. B. Gage in 1869, which ended in divorce. He later married Harriet E. Eddy in 1880, with whom he had two children.
probably it's revealed in "Phineas and Ferb's Quantum Boogaloo", an episode in season 2
he was shot by the FBI
3
Flynn
In Cavendish Vermont
He left around 1859.
he crashed with iron rod
It was not specified in the episode "Phineas and Ferb's Quantum Boogaloo."
penetrating head injury