Help Please! How can I align objects along a circle path???

Hi again, Lauren here!

I have this situation wherein I have to align boxes (with texts inside grouped together w/ the box) along a path within only the range of 0-180 degrees so that's kind of a semicircle.

But the boxes will not be distributed evenly in distance it depends on the degrees given where to put them so its just fine.

I am actually making a huge family tree and I align the boxes every generation through a path one generation after another to make it neatly distributed in a semicircle way.

Can you help me how to do this??

I planned to connect the boxes later after I have neatly placed all of the boxes in a semicircle way..the one I sampled is the not so good way but if someone could have a nicer idea please help. Thankyou!

Please see attached photo to relate more with the situation. Thankyou so much!