Removing and bricking uo basement window
I have a 42x16” basement window that is useless (it is under an overhanging bay window, so it provides minimal light) and in poor condition. I am having the other basement windows replaced and will be insulating the basement walls. I would like to just take this out, brick it up, and then insulate over it. The window won’t be visible from outside unless you crawl under the overhang, and it faces the back yard, so I am not focused on exterior aesthetics. The above grade basement wall is brick. The rim joist is continuous above the window.
Can I just use brick and mortar without worrying about toothing out the half bricks? What brick type and mortar should I use? The house was built circa 1915 in New England.