Also, see the movie the “Outlaw Josey Whales”
Women on the frontier are typically pretty tough, Read you some McMurtry, Buffalo women probably. do you some research. That said a period rifle, which is what she would use, be it a Sharps or Winchester, or even a shotgun are going to weigh about half of what an eight year old weighs, and the kick from it would be quite uncomfortable. Or at least any rifle she might have handy. Which means trapping and that’s a skill she would have to learn from someone who knows how to do it. It is unlikely that a 42 year old woman would survive child birth in that era. Never mind the child surviving. This is why women during that era had a baby about every year from the time they got married till they either died or got too old to bear children. Look up the child mortality rates during your particular time period, explains why girls were typically married off young. Medicine wasn’t what it is now.