Looking for information on John Vander Broek, my 3rd great grandfather, as I've hit a dead end. He was born 1820ish in or around Gronegan, Netherlands and died 1856 in Netherlands. His wife was Mattje (not sure of spelling), born 1822 in Netherlands. As far as I can tell, Mattje's mother was Trijntje Kruizenga (from a photo of her death certificate). They had at least two children, Anna, born 1852, and George, born 1856. Any help would be appreciated. Thanks!