I am trying to trace my maternal grandfathers family as far back as I can. The farthest I have reached is his great grandfather who's name was Michael Gast. He was born in 1822 in Bavarian Rhenish Plaltinate, Germany. He married Margaret Gast who was born in 1836 also in Bavarian Rhenish Plaltinate, Germany. They immigrated to the United States more specifically to Maryland in 1860. Any info at all helps!