Pumpkin Bread that is similar to Banana Bread
Is pumpernickel a form of pumpkin bread? No, definitely not. Pumpernickel is defined by the grain used (specifically rye) and not by any added ingredients.

Can you make bread with pumpkins? Sure! Pumpkin bread is generally a moist quickbread, and like banana bread is often intended as a breakfast food. Unlike with bananas, the pumpkin usually has to be roasted to soften it before use, so it can take a bit more effort (though there is an excellent instructional guide on the old SA companion blog) unless you use a pre-cooked canned pumpkin. 

The moisture, protein, and fat content of pumpkin (or any squash, really) will also differ from banana, so you are best off not substituting into a banana bread recipe. Fortunately, a quick Google search for "pumpkin bread" shows dozens of recipes from different sources. Pick one that looks good to you and have a go.