One thought that occurs to me is that the signatures may not be those of the witnesses, as the wording is 'in the presence of' which strictly could be in anyone's writing (but by convention isn't), and if that were the case, the name would be unfamiliar to the person signing, making it appear a little clumsy.
In later years when copies were made for the register, the cleric clearly filled in signatures, and I suppose that might be the case here. The styles are not wildly different, tho the capital W may be an attempt at variation.