Hi Bency,
Here is a page showing a number of different breeds. You may be able to pick out the breed, or to say which of the varieties shown your chickens seem similar to.
https://www.backyardchickens.com/breeds/breed-chart
Here is a page about how to put photos on the forum.
It may be that your chickens are a local variety or of mixed breeds. If this is the case, please don't worry. Mixed breed chickens, and many of the less well-known local varieties, usually have very strong survival instincts, and are likely to raise their babies successfully.
I always raise my chicks in an outdoor pen, using a broody mother hen. I don't have roosters at all, I buy in fertile eggs or get them from friends. I expect the mother hen will be just fine with the chicks, but I would have a plan for what to do with the rooster if he shows aggression to the babies, just in case.
What do you feed your hen and rooster at present? The main thing with baby chicks is that the food is not too large. I had a broody hen that I was feeding whole wheat. When her eggs hatched (earlier than I expected) she looked very frazzled as she was trying to break the wheat grains with her beak so that they would be small enough for all the babies to eat. We all know that hens are not equipped for chewing up their food. I had a mix of smaller grain including millet at home, so I gave them some of these until I could buy crumbles. The hen immediately relaxed and showed her babies how to eat the small grain.