Thanks all for the responses! As was surmised, I had indeed seen discussion of the Williams case. My point of concern has been whether the body of the will and the signature need to be in the same form. That is, if one routinely writes documents in block letters, but still uses a script...
With the understanding that holographic wills have a number of potential disadvantages, I have one question. I've seen references to a court case where a holographic will written out entirely in block text, including the signature, was considered to be valid.
However, my understanding is that...