yes its spelled Ms.allen or ms.williams.
Punctuation after Ms is optional. ======================== I disagree. Punctuation following Mr and Mrs is becoming optional, but I would respectfully submit that it is incorrect to place a period after Ms, because Ms is actually a word and not an abbreviation (as are Mr, for Master, and Mrs, for Mistress).
Open punctuation is used in The Economist, a highly respected English newspaper. However, in the United States, a period is almost always used after both of these abbreviations.
The appropriate punctuation for "Inc." is a period (.) after the abbreviation.
period
. a period
Period.
The correct punctuation for the sentence "Hamsters are your favorite pets" is a period at the end.
All sentences use punctuation, if only a period at the end.
They are called Punctuation sings.
The term for musical punctuation, similar to a comma or period in a sentence, is called a "cadence."
The correct punctuation for "Sam is scared" is a period (Sam is scared.).
That could be a period...