Hi, mcmom1!
Where are you in Ohio?
We are in Indiana and are in a similar situation (minus the older kids). We are 36 and 38, and have a three-year-old. Although we enjoy camping with just the three of us, it has become clear that he is starting to get a little bored and we need to have another kid or two around (he doesn't have any siblings) for him to play with.
I am thinking about starting a family camping club here in Indiana, but if you are close enough, we could potentially combine forces.
2018 Grand Design Reflection 315RLTS
2014 RAM 2500 6.4L HEMI