Thank you, I will !! :) Wow, what a story. Yes, a lot of Hungarians emigrated between the latter half of the 19th century and WWI. At the time of your Great-Grandfather's departure there was a stubborn stagnation brought on by a lot of Hungarians who didn't want change. Best described by this poem Endre Ady wrote in 1906:
http://www.babelmatrix.org/works/hu/Ady_Endre/A_magyar_Ugaron/en/1837-The_magyar_fallow