Not sure precisely what your source is. UK probate abstracts don't normally spell out the estates disposal. They normally detail the deceased's address, date of death and occupation, together with information that tells you whether there was a valid will or not. Then you have the executor(s) or administrator(s) names and the stated value. As in this example:
"Probate of the Will of Agnes M'Dowell late of Ballyfotherly County Down Spinster who died 28 March 1904 granted at Belfast to James M'Dowell Traveller and William Matier Farmer. Effects £1,084 0s. 2d".
In the above example James M'Dowell and William Matier were the executors, not the beneficiaries (though they may also have received something). You need the will to know what bequests the deceased had made.
In your case, I'd suggest you obtain a copy of the actual will as that should tell you specifically whether provision was made for the wife and daughters. Assuming it's an English will, they are not expensive to obtain.