Yes, BM, I see that saying that the witnesses sign in the presence of each other is listed as good practice, ex abundante cautela, but not strictly necessary. All the recent wills I have seen, including my own (not, of course , drafted by me ) included those words. My memory of the fuss over my own father's will must be mistaken; the refusal of probate at first must have been that the words "in the presence of the testator" and not "in the presence of each other" had been omitted. The absence of the words,however, certainly caused a lot of trouble , and would have been fatal to the will, had we not, after great efforts, traced one of the witnesses and been able to provide her statement that both witnesses were so present.Not easy some 20 or so years after the date of the will !