All of us encounter brick walls. There are so many ways to try to break it down. Some are successful; some are not. However, you need to try them. As you start your genealogy research, try to find all the siblings before you go on to the next generation. I found the marriage record of one of my ancestors along with the baptism of their daughter, my direct ggggrandmother. The marriage record did not name the parents of the couple. Only by looking for all the baptisms of their children did I find out who the paternal and maternal grandparents were. AND only one of the baptisms named them. Similarly, as you compare the census years one after another, take note of the children. Find their records and see if you can break down that wall.